Home / 74,428.12-102,710.64-42,597.64

Finding the Fourth Proportional to 74,428.12, 102,710.64 and 42,597.64

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Solution

The fourth proportional to 74,428.12, 102,710.64 and 42,597.64 is: 58,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.12 : 102,710.64 = 42,597.64 : x
  2. Step 2: Convert to fraction form
    74,428.12/102,710.64 = 42,597.64/x
  3. Step 3: Cross multiply
    74,428.12x = 102,710.64 × 42,597.64
  4. Step 4: Simplify right side
    74,428.12x = 4,375,230,866.89
  5. Step 5: Solve for x
    x = 4,375,230,866.89/74,428.12
  6. Step 6: Final answer
    x = 58,784.65

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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.