Home / 72,947.36-109,463.16-39,666.08

Finding the Fourth Proportional to 72,947.36, 109,463.16 and 39,666.08

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Solution

The fourth proportional to 72,947.36, 109,463.16 and 39,666.08 is: 59,522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,947.36 : 109,463.16 = 39,666.08 : x
  2. Step 2: Convert to fraction form
    72,947.36/109,463.16 = 39,666.08/x
  3. Step 3: Cross multiply
    72,947.36x = 109,463.16 × 39,666.08
  4. Step 4: Simplify right side
    72,947.36x = 4,341,974,461.61
  5. Step 5: Solve for x
    x = 4,341,974,461.61/72,947.36
  6. Step 6: Final answer
    x = 59,522.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.