Home / 82,278.63-123,421.47-26,117.55

Finding the Fourth Proportional to 82,278.63, 123,421.47 and 26,117.55

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Solution

The fourth proportional to 82,278.63, 123,421.47 and 26,117.55 is: 39,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,278.63 : 123,421.47 = 26,117.55 : x
  2. Step 2: Convert to fraction form
    82,278.63/123,421.47 = 26,117.55/x
  3. Step 3: Cross multiply
    82,278.63x = 123,421.47 × 26,117.55
  4. Step 4: Simplify right side
    82,278.63x = 3,223,466,413.80
  5. Step 5: Solve for x
    x = 3,223,466,413.80/82,278.63
  6. Step 6: Final answer
    x = 39,177.44

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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.