Home / 86,402.32-119,164.72-72,551.20

Finding the Fourth Proportional to 86,402.32, 119,164.72 and 72,551.20

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Solution

The fourth proportional to 86,402.32, 119,164.72 and 72,551.20 is: 100,061.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,402.32 : 119,164.72 = 72,551.20 : x
  2. Step 2: Convert to fraction form
    86,402.32/119,164.72 = 72,551.20/x
  3. Step 3: Cross multiply
    86,402.32x = 119,164.72 × 72,551.20
  4. Step 4: Simplify right side
    86,402.32x = 8,645,543,433.66
  5. Step 5: Solve for x
    x = 8,645,543,433.66/86,402.32
  6. Step 6: Final answer
    x = 100,061.47

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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.