Home / 86,521.31-129,802.16-29,595.66

Finding the Fourth Proportional to 86,521.31, 129,802.16 and 29,595.66

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Solution

The fourth proportional to 86,521.31, 129,802.16 and 29,595.66 is: 44,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,521.31 : 129,802.16 = 29,595.66 : x
  2. Step 2: Convert to fraction form
    86,521.31/129,802.16 = 29,595.66/x
  3. Step 3: Cross multiply
    86,521.31x = 129,802.16 × 29,595.66
  4. Step 4: Simplify right side
    86,521.31x = 3,841,580,446.65
  5. Step 5: Solve for x
    x = 3,841,580,446.65/86,521.31
  6. Step 6: Final answer
    x = 44,400.40

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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.