Home / 87,064.07-120,148.45-51,276.11

Finding the Fourth Proportional to 87,064.07, 120,148.45 and 51,276.11

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Solution

The fourth proportional to 87,064.07, 120,148.45 and 51,276.11 is: 70,761.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,064.07 : 120,148.45 = 51,276.11 : x
  2. Step 2: Convert to fraction form
    87,064.07/120,148.45 = 51,276.11/x
  3. Step 3: Cross multiply
    87,064.07x = 120,148.45 × 51,276.11
  4. Step 4: Simplify right side
    87,064.07x = 6,160,744,409.60
  5. Step 5: Solve for x
    x = 6,160,744,409.60/87,064.07
  6. Step 6: Final answer
    x = 70,761.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.