Home / 74,422.04-102,684.66-42,157.40

Finding the Fourth Proportional to 74,422.04, 102,684.66 and 42,157.40

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Solution

The fourth proportional to 74,422.04, 102,684.66 and 42,157.40 is: 58,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.04 : 102,684.66 = 42,157.40 : x
  2. Step 2: Convert to fraction form
    74,422.04/102,684.66 = 42,157.40/x
  3. Step 3: Cross multiply
    74,422.04x = 102,684.66 × 42,157.40
  4. Step 4: Simplify right side
    74,422.04x = 4,328,918,285.48
  5. Step 5: Solve for x
    x = 4,328,918,285.48/74,422.04
  6. Step 6: Final answer
    x = 58,167.15

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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.