Home / 42,661.17-64,001.08-13,081.31

Finding the Fourth Proportional to 42,661.17, 64,001.08 and 13,081.31

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Solution

The fourth proportional to 42,661.17, 64,001.08 and 13,081.31 is: 19,624.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,661.17 : 64,001.08 = 13,081.31 : x
  2. Step 2: Convert to fraction form
    42,661.17/64,001.08 = 13,081.31/x
  3. Step 3: Cross multiply
    42,661.17x = 64,001.08 × 13,081.31
  4. Step 4: Simplify right side
    42,661.17x = 837,217,647.81
  5. Step 5: Solve for x
    x = 837,217,647.81/42,661.17
  6. Step 6: Final answer
    x = 19,624.82

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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.