Home / 42,213.54-58,521.12-39,966.39

Finding the Fourth Proportional to 42,213.54, 58,521.12 and 39,966.39

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Solution

The fourth proportional to 42,213.54, 58,521.12 and 39,966.39 is: 55,405.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,213.54 : 58,521.12 = 39,966.39 : x
  2. Step 2: Convert to fraction form
    42,213.54/58,521.12 = 39,966.39/x
  3. Step 3: Cross multiply
    42,213.54x = 58,521.12 × 39,966.39
  4. Step 4: Simplify right side
    42,213.54x = 2,338,877,905.16
  5. Step 5: Solve for x
    x = 2,338,877,905.16/42,213.54
  6. Step 6: Final answer
    x = 55,405.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.