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Finding the Fourth Proportional to 52,437.60, 78,483.60 and 40,687.20

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Solution

The fourth proportional to 52,437.60, 78,483.60 and 40,687.20 is: 60,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,437.60 : 78,483.60 = 40,687.20 : x
  2. Step 2: Convert to fraction form
    52,437.60/78,483.60 = 40,687.20/x
  3. Step 3: Cross multiply
    52,437.60x = 78,483.60 × 40,687.20
  4. Step 4: Simplify right side
    52,437.60x = 3,193,277,929.92
  5. Step 5: Solve for x
    x = 3,193,277,929.92/52,437.60
  6. Step 6: Final answer
    x = 60,896.72

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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.