Home / 87,030.43-130,543.82-47,068.47

Finding the Fourth Proportional to 87,030.43, 130,543.82 and 47,068.47

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Solution

The fourth proportional to 87,030.43, 130,543.82 and 47,068.47 is: 70,601.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,030.43 : 130,543.82 = 47,068.47 : x
  2. Step 2: Convert to fraction form
    87,030.43/130,543.82 = 47,068.47/x
  3. Step 3: Cross multiply
    87,030.43x = 130,543.82 × 47,068.47
  4. Step 4: Simplify right side
    87,030.43x = 6,144,497,875.36
  5. Step 5: Solve for x
    x = 6,144,497,875.36/87,030.43
  6. Step 6: Final answer
    x = 70,601.72

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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.