Home / 60,765.17-91,156.85-21,315.33

Finding the Fourth Proportional to 60,765.17, 91,156.85 and 21,315.33

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Solution

The fourth proportional to 60,765.17, 91,156.85 and 21,315.33 is: 31,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,765.17 : 91,156.85 = 21,315.33 : x
  2. Step 2: Convert to fraction form
    60,765.17/91,156.85 = 21,315.33/x
  3. Step 3: Cross multiply
    60,765.17x = 91,156.85 × 21,315.33
  4. Step 4: Simplify right side
    60,765.17x = 1,943,038,392.80
  5. Step 5: Solve for x
    x = 1,943,038,392.80/60,765.17
  6. Step 6: Final answer
    x = 31,976.19

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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.