Home / 85,235.19-117,675.02-75,777.63

Finding the Fourth Proportional to 85,235.19, 117,675.02 and 75,777.63

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Solution

The fourth proportional to 85,235.19, 117,675.02 and 75,777.63 is: 104,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235.19 : 117,675.02 = 75,777.63 : x
  2. Step 2: Convert to fraction form
    85,235.19/117,675.02 = 75,777.63/x
  3. Step 3: Cross multiply
    85,235.19x = 117,675.02 × 75,777.63
  4. Step 4: Simplify right side
    85,235.19x = 8,917,133,746.91
  5. Step 5: Solve for x
    x = 8,917,133,746.91/85,235.19
  6. Step 6: Final answer
    x = 104,617.98

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.