Home / 74,681.24-103,062.36-40,691.96

Finding the Fourth Proportional to 74,681.24, 103,062.36 and 40,691.96

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Solution

The fourth proportional to 74,681.24, 103,062.36 and 40,691.96 is: 56,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681.24 : 103,062.36 = 40,691.96 : x
  2. Step 2: Convert to fraction form
    74,681.24/103,062.36 = 40,691.96/x
  3. Step 3: Cross multiply
    74,681.24x = 103,062.36 × 40,691.96
  4. Step 4: Simplify right side
    74,681.24x = 4,193,809,430.63
  5. Step 5: Solve for x
    x = 4,193,809,430.63/74,681.24
  6. Step 6: Final answer
    x = 56,156.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.