Home / 85,582.52-118,139.96-66,468.16

Finding the Fourth Proportional to 85,582.52, 118,139.96 and 66,468.16

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Solution

The fourth proportional to 85,582.52, 118,139.96 and 66,468.16 is: 91,754.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,582.52 : 118,139.96 = 66,468.16 : x
  2. Step 2: Convert to fraction form
    85,582.52/118,139.96 = 66,468.16/x
  3. Step 3: Cross multiply
    85,582.52x = 118,139.96 × 66,468.16
  4. Step 4: Simplify right side
    85,582.52x = 7,852,545,763.67
  5. Step 5: Solve for x
    x = 7,852,545,763.67/85,582.52
  6. Step 6: Final answer
    x = 91,754.08

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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.