Home / 73,909.02-102,002.58-42,072.78

Finding the Fourth Proportional to 73,909.02, 102,002.58 and 42,072.78

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Solution

The fourth proportional to 73,909.02, 102,002.58 and 42,072.78 is: 58,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,909.02 : 102,002.58 = 42,072.78 : x
  2. Step 2: Convert to fraction form
    73,909.02/102,002.58 = 42,072.78/x
  3. Step 3: Cross multiply
    73,909.02x = 102,002.58 × 42,072.78
  4. Step 4: Simplify right side
    73,909.02x = 4,291,532,107.77
  5. Step 5: Solve for x
    x = 4,291,532,107.77/73,909.02
  6. Step 6: Final answer
    x = 58,065.07

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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.