Home / 60,577.56-90,881.46-21,135

Finding the Fourth Proportional to 60,577.56, 90,881.46 and 21,135

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Solution

The fourth proportional to 60,577.56, 90,881.46 and 21,135 is: 31,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,577.56 : 90,881.46 = 21,135 : x
  2. Step 2: Convert to fraction form
    60,577.56/90,881.46 = 21,135/x
  3. Step 3: Cross multiply
    60,577.56x = 90,881.46 × 21,135
  4. Step 4: Simplify right side
    60,577.56x = 1,920,779,657.10
  5. Step 5: Solve for x
    x = 1,920,779,657.10/60,577.56
  6. Step 6: Final answer
    x = 31,707.78

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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.