Home / 87,211.08-130,838.49-34,603.20

Finding the Fourth Proportional to 87,211.08, 130,838.49 and 34,603.20

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Solution

The fourth proportional to 87,211.08, 130,838.49 and 34,603.20 is: 51,913.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,211.08 : 130,838.49 = 34,603.20 : x
  2. Step 2: Convert to fraction form
    87,211.08/130,838.49 = 34,603.20/x
  3. Step 3: Cross multiply
    87,211.08x = 130,838.49 × 34,603.20
  4. Step 4: Simplify right side
    87,211.08x = 4,527,430,437.17
  5. Step 5: Solve for x
    x = 4,527,430,437.17/87,211.08
  6. Step 6: Final answer
    x = 51,913.48

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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.