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Finding the Fourth Proportional to 42,753.65, 64,074.55 and 22,989.65

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Solution

The fourth proportional to 42,753.65, 64,074.55 and 22,989.65 is: 34,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,753.65 : 64,074.55 = 22,989.65 : x
  2. Step 2: Convert to fraction form
    42,753.65/64,074.55 = 22,989.65/x
  3. Step 3: Cross multiply
    42,753.65x = 64,074.55 × 22,989.65
  4. Step 4: Simplify right side
    42,753.65x = 1,473,051,478.41
  5. Step 5: Solve for x
    x = 1,473,051,478.41/42,753.65
  6. Step 6: Final answer
    x = 34,454.40

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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.