Home / 87,280.50-130,798.70-47,212.98

Finding the Fourth Proportional to 87,280.50, 130,798.70 and 47,212.98

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Solution

The fourth proportional to 87,280.50, 130,798.70 and 47,212.98 is: 70,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,280.50 : 130,798.70 = 47,212.98 : x
  2. Step 2: Convert to fraction form
    87,280.50/130,798.70 = 47,212.98/x
  3. Step 3: Cross multiply
    87,280.50x = 130,798.70 × 47,212.98
  4. Step 4: Simplify right side
    87,280.50x = 6,175,396,407.13
  5. Step 5: Solve for x
    x = 6,175,396,407.13/87,280.50
  6. Step 6: Final answer
    x = 70,753.45

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1.5x scale

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.