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Finding the Fourth Proportional to 72,177.84, 108,004.32 and 59,580.72

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Solution

The fourth proportional to 72,177.84, 108,004.32 and 59,580.72 is: 89,154.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,177.84 : 108,004.32 = 59,580.72 : x
  2. Step 2: Convert to fraction form
    72,177.84/108,004.32 = 59,580.72/x
  3. Step 3: Cross multiply
    72,177.84x = 108,004.32 × 59,580.72
  4. Step 4: Simplify right side
    72,177.84x = 6,434,975,148.71
  5. Step 5: Solve for x
    x = 6,434,975,148.71/72,177.84
  6. Step 6: Final answer
    x = 89,154.44

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1.5x scale

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.