Home / 60,555.72-90,833.98-21,112.70

Finding the Fourth Proportional to 60,555.72, 90,833.98 and 21,112.70

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Solution

The fourth proportional to 60,555.72, 90,833.98 and 21,112.70 is: 31,669.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,555.72 : 90,833.98 = 21,112.70 : x
  2. Step 2: Convert to fraction form
    60,555.72/90,833.98 = 21,112.70/x
  3. Step 3: Cross multiply
    60,555.72x = 90,833.98 × 21,112.70
  4. Step 4: Simplify right side
    60,555.72x = 1,917,750,569.55
  5. Step 5: Solve for x
    x = 1,917,750,569.55/60,555.72
  6. Step 6: Final answer
    x = 31,669.19

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1.5x scale

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.