Home / 86,240.01-129,360.59-30,079.91

Finding the Fourth Proportional to 86,240.01, 129,360.59 and 30,079.91

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Solution

The fourth proportional to 86,240.01, 129,360.59 and 30,079.91 is: 45,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,240.01 : 129,360.59 = 30,079.91 : x
  2. Step 2: Convert to fraction form
    86,240.01/129,360.59 = 30,079.91/x
  3. Step 3: Cross multiply
    86,240.01x = 129,360.59 × 30,079.91
  4. Step 4: Simplify right side
    86,240.01x = 3,891,154,754.35
  5. Step 5: Solve for x
    x = 3,891,154,754.35/86,240.01
  6. Step 6: Final answer
    x = 45,120.06

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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.