Home / 74,965.11-103,451.67-42,699.72

Finding the Fourth Proportional to 74,965.11, 103,451.67 and 42,699.72

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Solution

The fourth proportional to 74,965.11, 103,451.67 and 42,699.72 is: 58,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,965.11 : 103,451.67 = 42,699.72 : x
  2. Step 2: Convert to fraction form
    74,965.11/103,451.67 = 42,699.72/x
  3. Step 3: Cross multiply
    74,965.11x = 103,451.67 × 42,699.72
  4. Step 4: Simplify right side
    74,965.11x = 4,417,357,342.53
  5. Step 5: Solve for x
    x = 4,417,357,342.53/74,965.11
  6. Step 6: Final answer
    x = 58,925.51

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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.