Home / 81,497.28-112,346.08-63,572.16

Finding the Fourth Proportional to 81,497.28, 112,346.08 and 63,572.16

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Solution

The fourth proportional to 81,497.28, 112,346.08 and 63,572.16 is: 87,635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,497.28 : 112,346.08 = 63,572.16 : x
  2. Step 2: Convert to fraction form
    81,497.28/112,346.08 = 63,572.16/x
  3. Step 3: Cross multiply
    81,497.28x = 112,346.08 × 63,572.16
  4. Step 4: Simplify right side
    81,497.28x = 7,142,082,973.13
  5. Step 5: Solve for x
    x = 7,142,082,973.13/81,497.28
  6. Step 6: Final answer
    x = 87,635.84

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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.