Home / 74,192.10-102,420.56-42,354.84

Finding the Fourth Proportional to 74,192.10, 102,420.56 and 42,354.84

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Solution

The fourth proportional to 74,192.10, 102,420.56 and 42,354.84 is: 58,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,192.10 : 102,420.56 = 42,354.84 : x
  2. Step 2: Convert to fraction form
    74,192.10/102,420.56 = 42,354.84/x
  3. Step 3: Cross multiply
    74,192.10x = 102,420.56 × 42,354.84
  4. Step 4: Simplify right side
    74,192.10x = 4,338,006,219.74
  5. Step 5: Solve for x
    x = 4,338,006,219.74/74,192.10
  6. Step 6: Final answer
    x = 58,469.92

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1.5x scale

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.