Home / 42,960.12-64,363.95-17,945.13

Finding the Fourth Proportional to 42,960.12, 64,363.95 and 17,945.13

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Solution

The fourth proportional to 42,960.12, 64,363.95 and 17,945.13 is: 26,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,960.12 : 64,363.95 = 17,945.13 : x
  2. Step 2: Convert to fraction form
    42,960.12/64,363.95 = 17,945.13/x
  3. Step 3: Cross multiply
    42,960.12x = 64,363.95 × 17,945.13
  4. Step 4: Simplify right side
    42,960.12x = 1,155,019,450.06
  5. Step 5: Solve for x
    x = 1,155,019,450.06/42,960.12
  6. Step 6: Final answer
    x = 26,885.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.