Home / 86,463.84-129,693.33-47,269.20

Finding the Fourth Proportional to 86,463.84, 129,693.33 and 47,269.20

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Solution

The fourth proportional to 86,463.84, 129,693.33 and 47,269.20 is: 70,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,463.84 : 129,693.33 = 47,269.20 : x
  2. Step 2: Convert to fraction form
    86,463.84/129,693.33 = 47,269.20/x
  3. Step 3: Cross multiply
    86,463.84x = 129,693.33 × 47,269.20
  4. Step 4: Simplify right side
    86,463.84x = 6,130,499,954.44
  5. Step 5: Solve for x
    x = 6,130,499,954.44/86,463.84
  6. Step 6: Final answer
    x = 70,902.47

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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.