Home / 85,085.30-117,415.77-53,271.74

Finding the Fourth Proportional to 85,085.30, 117,415.77 and 53,271.74

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Solution

The fourth proportional to 85,085.30, 117,415.77 and 53,271.74 is: 73,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,085.30 : 117,415.77 = 53,271.74 : x
  2. Step 2: Convert to fraction form
    85,085.30/117,415.77 = 53,271.74/x
  3. Step 3: Cross multiply
    85,085.30x = 117,415.77 × 53,271.74
  4. Step 4: Simplify right side
    85,085.30x = 6,254,942,371.34
  5. Step 5: Solve for x
    x = 6,254,942,371.34/85,085.30
  6. Step 6: Final answer
    x = 73,513.78

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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.