Home / 42,305.92-63,389.66-25,615.40

Finding the Fourth Proportional to 42,305.92, 63,389.66 and 25,615.40

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Solution

The fourth proportional to 42,305.92, 63,389.66 and 25,615.40 is: 38,381.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,305.92 : 63,389.66 = 25,615.40 : x
  2. Step 2: Convert to fraction form
    42,305.92/63,389.66 = 25,615.40/x
  3. Step 3: Cross multiply
    42,305.92x = 63,389.66 × 25,615.40
  4. Step 4: Simplify right side
    42,305.92x = 1,623,751,051.74
  5. Step 5: Solve for x
    x = 1,623,751,051.74/42,305.92
  6. Step 6: Final answer
    x = 38,381.18

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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.