Home / 74,810.10-103,241.92-42,981.06

Finding the Fourth Proportional to 74,810.10, 103,241.92 and 42,981.06

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Solution

The fourth proportional to 74,810.10, 103,241.92 and 42,981.06 is: 59,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,810.10 : 103,241.92 = 42,981.06 : x
  2. Step 2: Convert to fraction form
    74,810.10/103,241.92 = 42,981.06/x
  3. Step 3: Cross multiply
    74,810.10x = 103,241.92 × 42,981.06
  4. Step 4: Simplify right side
    74,810.10x = 4,437,447,158.04
  5. Step 5: Solve for x
    x = 4,437,447,158.04/74,810.10
  6. Step 6: Final answer
    x = 59,316.15

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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.