Home / 86,691.07-130,042.28-26,712.19

Finding the Fourth Proportional to 86,691.07, 130,042.28 and 26,712.19

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Solution

The fourth proportional to 86,691.07, 130,042.28 and 26,712.19 is: 40,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,691.07 : 130,042.28 = 26,712.19 : x
  2. Step 2: Convert to fraction form
    86,691.07/130,042.28 = 26,712.19/x
  3. Step 3: Cross multiply
    86,691.07x = 130,042.28 × 26,712.19
  4. Step 4: Simplify right side
    86,691.07x = 3,473,713,957.83
  5. Step 5: Solve for x
    x = 3,473,713,957.83/86,691.07
  6. Step 6: Final answer
    x = 40,070.03

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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.