Home / 42,412.20-63,618.30-26,665.80

Finding the Fourth Proportional to 42,412.20, 63,618.30 and 26,665.80

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Solution

The fourth proportional to 42,412.20, 63,618.30 and 26,665.80 is: 39,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,412.20 : 63,618.30 = 26,665.80 : x
  2. Step 2: Convert to fraction form
    42,412.20/63,618.30 = 26,665.80/x
  3. Step 3: Cross multiply
    42,412.20x = 63,618.30 × 26,665.80
  4. Step 4: Simplify right side
    42,412.20x = 1,696,432,864.14
  5. Step 5: Solve for x
    x = 1,696,432,864.14/42,412.20
  6. Step 6: Final answer
    x = 39,998.70

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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.