Home / 87,320.90-130,888.10-49,800.18

Finding the Fourth Proportional to 87,320.90, 130,888.10 and 49,800.18

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Solution

The fourth proportional to 87,320.90, 130,888.10 and 49,800.18 is: 74,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,320.90 : 130,888.10 = 49,800.18 : x
  2. Step 2: Convert to fraction form
    87,320.90/130,888.10 = 49,800.18/x
  3. Step 3: Cross multiply
    87,320.90x = 130,888.10 × 49,800.18
  4. Step 4: Simplify right side
    87,320.90x = 6,518,250,784.23
  5. Step 5: Solve for x
    x = 6,518,250,784.23/87,320.90
  6. Step 6: Final answer
    x = 74,647.09

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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.