Home / 42,657.12-58,862.16-30,060

Finding the Fourth Proportional to 42,657.12, 58,862.16 and 30,060

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Solution

The fourth proportional to 42,657.12, 58,862.16 and 30,060 is: 41,479.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,657.12 : 58,862.16 = 30,060 : x
  2. Step 2: Convert to fraction form
    42,657.12/58,862.16 = 30,060/x
  3. Step 3: Cross multiply
    42,657.12x = 58,862.16 × 30,060
  4. Step 4: Simplify right side
    42,657.12x = 1,769,396,529.60
  5. Step 5: Solve for x
    x = 1,769,396,529.60/42,657.12
  6. Step 6: Final answer
    x = 41,479.51

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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.