Home / 87,139.89-130,707.09-24,810.39

Finding the Fourth Proportional to 87,139.89, 130,707.09 and 24,810.39

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Solution

The fourth proportional to 87,139.89, 130,707.09 and 24,810.39 is: 37,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,139.89 : 130,707.09 = 24,810.39 : x
  2. Step 2: Convert to fraction form
    87,139.89/130,707.09 = 24,810.39/x
  3. Step 3: Cross multiply
    87,139.89x = 130,707.09 × 24,810.39
  4. Step 4: Simplify right side
    87,139.89x = 3,242,893,878.67
  5. Step 5: Solve for x
    x = 3,242,893,878.67/87,139.89
  6. Step 6: Final answer
    x = 37,214.80

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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.