Home / 51,407.10-77,110.65-39,728.70

Finding the Fourth Proportional to 51,407.10, 77,110.65 and 39,728.70

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Solution

The fourth proportional to 51,407.10, 77,110.65 and 39,728.70 is: 59,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,407.10 : 77,110.65 = 39,728.70 : x
  2. Step 2: Convert to fraction form
    51,407.10/77,110.65 = 39,728.70/x
  3. Step 3: Cross multiply
    51,407.10x = 77,110.65 × 39,728.70
  4. Step 4: Simplify right side
    51,407.10x = 3,063,505,880.66
  5. Step 5: Solve for x
    x = 3,063,505,880.66/51,407.10
  6. Step 6: Final answer
    x = 59,593.05

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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.