Home / 87,710.40-131,565.60-52,228.80

Finding the Fourth Proportional to 87,710.40, 131,565.60 and 52,228.80

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Solution

The fourth proportional to 87,710.40, 131,565.60 and 52,228.80 is: 78,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,710.40 : 131,565.60 = 52,228.80 : x
  2. Step 2: Convert to fraction form
    87,710.40/131,565.60 = 52,228.80/x
  3. Step 3: Cross multiply
    87,710.40x = 131,565.60 × 52,228.80
  4. Step 4: Simplify right side
    87,710.40x = 6,871,513,409.28
  5. Step 5: Solve for x
    x = 6,871,513,409.28/87,710.40
  6. Step 6: Final answer
    x = 78,343.20

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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.