Home / 52,345.12-72,234.20-28,471.76

Finding the Fourth Proportional to 52,345.12, 72,234.20 and 28,471.76

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Solution

The fourth proportional to 52,345.12, 72,234.20 and 28,471.76 is: 39,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,345.12 : 72,234.20 = 28,471.76 : x
  2. Step 2: Convert to fraction form
    52,345.12/72,234.20 = 28,471.76/x
  3. Step 3: Cross multiply
    52,345.12x = 72,234.20 × 28,471.76
  4. Step 4: Simplify right side
    52,345.12x = 2,056,634,806.19
  5. Step 5: Solve for x
    x = 2,056,634,806.19/52,345.12
  6. Step 6: Final answer
    x = 39,289.91

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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.