Home / 85,518.63-118,053.18-65,376.36

Finding the Fourth Proportional to 85,518.63, 118,053.18 and 65,376.36

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Solution

The fourth proportional to 85,518.63, 118,053.18 and 65,376.36 is: 90,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.63 : 118,053.18 = 65,376.36 : x
  2. Step 2: Convert to fraction form
    85,518.63/118,053.18 = 65,376.36/x
  3. Step 3: Cross multiply
    85,518.63x = 118,053.18 × 65,376.36
  4. Step 4: Simplify right side
    85,518.63x = 7,717,887,194.82
  5. Step 5: Solve for x
    x = 7,717,887,194.82/85,518.63
  6. Step 6: Final answer
    x = 90,248.02

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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.