Home / 86,586.39-129,920.67-59,973.30

Finding the Fourth Proportional to 86,586.39, 129,920.67 and 59,973.30

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Solution

The fourth proportional to 86,586.39, 129,920.67 and 59,973.30 is: 89,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,586.39 : 129,920.67 = 59,973.30 : x
  2. Step 2: Convert to fraction form
    86,586.39/129,920.67 = 59,973.30/x
  3. Step 3: Cross multiply
    86,586.39x = 129,920.67 × 59,973.30
  4. Step 4: Simplify right side
    86,586.39x = 7,791,771,318.11
  5. Step 5: Solve for x
    x = 7,791,771,318.11/86,586.39
  6. Step 6: Final answer
    x = 89,988.41

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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.