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Finding the Fourth Proportional to 52,479.52, 72,420.84 and 28,606.40

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Solution

The fourth proportional to 52,479.52, 72,420.84 and 28,606.40 is: 39,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,479.52 : 72,420.84 = 28,606.40 : x
  2. Step 2: Convert to fraction form
    52,479.52/72,420.84 = 28,606.40/x
  3. Step 3: Cross multiply
    52,479.52x = 72,420.84 × 28,606.40
  4. Step 4: Simplify right side
    52,479.52x = 2,071,699,517.38
  5. Step 5: Solve for x
    x = 2,071,699,517.38/52,479.52
  6. Step 6: Final answer
    x = 39,476.34

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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.