Home / 74,686.59-103,066.19-40,695.36

Finding the Fourth Proportional to 74,686.59, 103,066.19 and 40,695.36

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Solution

The fourth proportional to 74,686.59, 103,066.19 and 40,695.36 is: 56,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,686.59 : 103,066.19 = 40,695.36 : x
  2. Step 2: Convert to fraction form
    74,686.59/103,066.19 = 40,695.36/x
  3. Step 3: Cross multiply
    74,686.59x = 103,066.19 × 40,695.36
  4. Step 4: Simplify right side
    74,686.59x = 4,194,315,705.88
  5. Step 5: Solve for x
    x = 4,194,315,705.88/74,686.59
  6. Step 6: Final answer
    x = 56,158.89

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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.