Home / 86,325.98-129,346.40-39,475.58

Finding the Fourth Proportional to 86,325.98, 129,346.40 and 39,475.58

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Solution

The fourth proportional to 86,325.98, 129,346.40 and 39,475.58 is: 59,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,325.98 : 129,346.40 = 39,475.58 : x
  2. Step 2: Convert to fraction form
    86,325.98/129,346.40 = 39,475.58/x
  3. Step 3: Cross multiply
    86,325.98x = 129,346.40 × 39,475.58
  4. Step 4: Simplify right side
    86,325.98x = 5,106,023,612.87
  5. Step 5: Solve for x
    x = 5,106,023,612.87/86,325.98
  6. Step 6: Final answer
    x = 59,148.17

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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.