Home / 86,945.55-130,424.40-34,348.20

Finding the Fourth Proportional to 86,945.55, 130,424.40 and 34,348.20

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Solution

The fourth proportional to 86,945.55, 130,424.40 and 34,348.20 is: 51,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,945.55 : 130,424.40 = 34,348.20 : x
  2. Step 2: Convert to fraction form
    86,945.55/130,424.40 = 34,348.20/x
  3. Step 3: Cross multiply
    86,945.55x = 130,424.40 × 34,348.20
  4. Step 4: Simplify right side
    86,945.55x = 4,479,843,376.08
  5. Step 5: Solve for x
    x = 4,479,843,376.08/86,945.55
  6. Step 6: Final answer
    x = 51,524.70

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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.