Home / 42,050.79-62,988.71-19,881.90

Finding the Fourth Proportional to 42,050.79, 62,988.71 and 19,881.90

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Solution

The fourth proportional to 42,050.79, 62,988.71 and 19,881.90 is: 29,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,050.79 : 62,988.71 = 19,881.90 : x
  2. Step 2: Convert to fraction form
    42,050.79/62,988.71 = 19,881.90/x
  3. Step 3: Cross multiply
    42,050.79x = 62,988.71 × 19,881.90
  4. Step 4: Simplify right side
    42,050.79x = 1,252,335,133.94
  5. Step 5: Solve for x
    x = 1,252,335,133.94/42,050.79
  6. Step 6: Final answer
    x = 29,781.49

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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.