Home / 75,569.34-112,687.31-74,894.81

Finding the Fourth Proportional to 75,569.34, 112,687.31 and 74,894.81

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Solution

The fourth proportional to 75,569.34, 112,687.31 and 74,894.81 is: 111,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,569.34 : 112,687.31 = 74,894.81 : x
  2. Step 2: Convert to fraction form
    75,569.34/112,687.31 = 74,894.81/x
  3. Step 3: Cross multiply
    75,569.34x = 112,687.31 × 74,894.81
  4. Step 4: Simplify right side
    75,569.34x = 8,439,693,733.95
  5. Step 5: Solve for x
    x = 8,439,693,733.95/75,569.34
  6. Step 6: Final answer
    x = 111,681.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.