Home / 86,459.43-129,657.93-36,543.39

Finding the Fourth Proportional to 86,459.43, 129,657.93 and 36,543.39

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Solution

The fourth proportional to 86,459.43, 129,657.93 and 36,543.39 is: 54,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,459.43 : 129,657.93 = 36,543.39 : x
  2. Step 2: Convert to fraction form
    86,459.43/129,657.93 = 36,543.39/x
  3. Step 3: Cross multiply
    86,459.43x = 129,657.93 × 36,543.39
  4. Step 4: Simplify right side
    86,459.43x = 4,738,140,302.58
  5. Step 5: Solve for x
    x = 4,738,140,302.58/86,459.43
  6. Step 6: Final answer
    x = 54,801.89

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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.