Home / 77,726.35-107,280.29-45,475.97

Finding the Fourth Proportional to 77,726.35, 107,280.29 and 45,475.97

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Solution

The fourth proportional to 77,726.35, 107,280.29 and 45,475.97 is: 62,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,726.35 : 107,280.29 = 45,475.97 : x
  2. Step 2: Convert to fraction form
    77,726.35/107,280.29 = 45,475.97/x
  3. Step 3: Cross multiply
    77,726.35x = 107,280.29 × 45,475.97
  4. Step 4: Simplify right side
    77,726.35x = 4,878,675,022.25
  5. Step 5: Solve for x
    x = 4,878,675,022.25/77,726.35
  6. Step 6: Final answer
    x = 62,767.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.