Home / 86,585.10-129,780.45-44,448.90

Finding the Fourth Proportional to 86,585.10, 129,780.45 and 44,448.90

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Solution

The fourth proportional to 86,585.10, 129,780.45 and 44,448.90 is: 66,623.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,585.10 : 129,780.45 = 44,448.90 : x
  2. Step 2: Convert to fraction form
    86,585.10/129,780.45 = 44,448.90/x
  3. Step 3: Cross multiply
    86,585.10x = 129,780.45 × 44,448.90
  4. Step 4: Simplify right side
    86,585.10x = 5,768,598,244.01
  5. Step 5: Solve for x
    x = 5,768,598,244.01/86,585.10
  6. Step 6: Final answer
    x = 66,623.45

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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.