Home / 86,544.50-129,590.10-69,587.37

Finding the Fourth Proportional to 86,544.50, 129,590.10 and 69,587.37

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Solution

The fourth proportional to 86,544.50, 129,590.10 and 69,587.37 is: 104,198.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,544.50 : 129,590.10 = 69,587.37 : x
  2. Step 2: Convert to fraction form
    86,544.50/129,590.10 = 69,587.37/x
  3. Step 3: Cross multiply
    86,544.50x = 129,590.10 × 69,587.37
  4. Step 4: Simplify right side
    86,544.50x = 9,017,834,237.04
  5. Step 5: Solve for x
    x = 9,017,834,237.04/86,544.50
  6. Step 6: Final answer
    x = 104,198.82

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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.