Home / 56,109.75-77,433.08-30,960.87

Finding the Fourth Proportional to 56,109.75, 77,433.08 and 30,960.87

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Solution

The fourth proportional to 56,109.75, 77,433.08 and 30,960.87 is: 42,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,109.75 : 77,433.08 = 30,960.87 : x
  2. Step 2: Convert to fraction form
    56,109.75/77,433.08 = 30,960.87/x
  3. Step 3: Cross multiply
    56,109.75x = 77,433.08 × 30,960.87
  4. Step 4: Simplify right side
    56,109.75x = 2,397,395,368.78
  5. Step 5: Solve for x
    x = 2,397,395,368.78/56,109.75
  6. Step 6: Final answer
    x = 42,726.89

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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.