Home / 87,017.76-120,084.48-51,207.84

Finding the Fourth Proportional to 87,017.76, 120,084.48 and 51,207.84

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Solution

The fourth proportional to 87,017.76, 120,084.48 and 51,207.84 is: 70,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,017.76 : 120,084.48 = 51,207.84 : x
  2. Step 2: Convert to fraction form
    87,017.76/120,084.48 = 51,207.84/x
  3. Step 3: Cross multiply
    87,017.76x = 120,084.48 × 51,207.84
  4. Step 4: Simplify right side
    87,017.76x = 6,149,266,838.32
  5. Step 5: Solve for x
    x = 6,149,266,838.32/87,017.76
  6. Step 6: Final answer
    x = 70,666.80

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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.