Home / 53,822.60-80,561.10-42,072.20

Finding the Fourth Proportional to 53,822.60, 80,561.10 and 42,072.20

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Solution

The fourth proportional to 53,822.60, 80,561.10 and 42,072.20 is: 62,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,822.60 : 80,561.10 = 42,072.20 : x
  2. Step 2: Convert to fraction form
    53,822.60/80,561.10 = 42,072.20/x
  3. Step 3: Cross multiply
    53,822.60x = 80,561.10 × 42,072.20
  4. Step 4: Simplify right side
    53,822.60x = 3,389,382,711.42
  5. Step 5: Solve for x
    x = 3,389,382,711.42/53,822.60
  6. Step 6: Final answer
    x = 62,973.23

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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.