Home / 86,587.26-129,842.01-39,853.50

Finding the Fourth Proportional to 86,587.26, 129,842.01 and 39,853.50

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Solution

The fourth proportional to 86,587.26, 129,842.01 and 39,853.50 is: 59,762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,587.26 : 129,842.01 = 39,853.50 : x
  2. Step 2: Convert to fraction form
    86,587.26/129,842.01 = 39,853.50/x
  3. Step 3: Cross multiply
    86,587.26x = 129,842.01 × 39,853.50
  4. Step 4: Simplify right side
    86,587.26x = 5,174,658,545.54
  5. Step 5: Solve for x
    x = 5,174,658,545.54/86,587.26
  6. Step 6: Final answer
    x = 59,762.35

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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.