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Finding the Fourth Proportional to 60,458.20, 90,614.40 and 30,860.80

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Solution

The fourth proportional to 60,458.20, 90,614.40 and 30,860.80 is: 46,253.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,458.20 : 90,614.40 = 30,860.80 : x
  2. Step 2: Convert to fraction form
    60,458.20/90,614.40 = 30,860.80/x
  3. Step 3: Cross multiply
    60,458.20x = 90,614.40 × 30,860.80
  4. Step 4: Simplify right side
    60,458.20x = 2,796,432,875.52
  5. Step 5: Solve for x
    x = 2,796,432,875.52/60,458.20
  6. Step 6: Final answer
    x = 46,253.99

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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.