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Finding the Fourth Proportional to 74,030.76, 102,156.39 and 42,193.71

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Solution

The fourth proportional to 74,030.76, 102,156.39 and 42,193.71 is: 58,223.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,030.76 : 102,156.39 = 42,193.71 : x
  2. Step 2: Convert to fraction form
    74,030.76/102,156.39 = 42,193.71/x
  3. Step 3: Cross multiply
    74,030.76x = 102,156.39 × 42,193.71
  4. Step 4: Simplify right side
    74,030.76x = 4,310,357,094.31
  5. Step 5: Solve for x
    x = 4,310,357,094.31/74,030.76
  6. Step 6: Final answer
    x = 58,223.87

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