Home / 55,876.74-77,109.90-30,726.24

Finding the Fourth Proportional to 55,876.74, 77,109.90 and 30,726.24

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Solution

The fourth proportional to 55,876.74, 77,109.90 and 30,726.24 is: 42,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,876.74 : 77,109.90 = 30,726.24 : x
  2. Step 2: Convert to fraction form
    55,876.74/77,109.90 = 30,726.24/x
  3. Step 3: Cross multiply
    55,876.74x = 77,109.90 × 30,726.24
  4. Step 4: Simplify right side
    55,876.74x = 2,369,297,178.55
  5. Step 5: Solve for x
    x = 2,369,297,178.55/55,876.74
  6. Step 6: Final answer
    x = 42,402.21

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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.