Home / 61,112.40-91,610-38,856.88

Finding the Fourth Proportional to 61,112.40, 91,610 and 38,856.88

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Solution

The fourth proportional to 61,112.40, 91,610 and 38,856.88 is: 58,248.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,112.40 : 91,610 = 38,856.88 : x
  2. Step 2: Convert to fraction form
    61,112.40/91,610 = 38,856.88/x
  3. Step 3: Cross multiply
    61,112.40x = 91,610 × 38,856.88
  4. Step 4: Simplify right side
    61,112.40x = 3,559,678,776.80
  5. Step 5: Solve for x
    x = 3,559,678,776.80/61,112.40
  6. Step 6: Final answer
    x = 58,248.06

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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.