Home / 56,144.13-77,475.60-30,645.45

Finding the Fourth Proportional to 56,144.13, 77,475.60 and 30,645.45

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Solution

The fourth proportional to 56,144.13, 77,475.60 and 30,645.45 is: 42,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,144.13 : 77,475.60 = 30,645.45 : x
  2. Step 2: Convert to fraction form
    56,144.13/77,475.60 = 30,645.45/x
  3. Step 3: Cross multiply
    56,144.13x = 77,475.60 × 30,645.45
  4. Step 4: Simplify right side
    56,144.13x = 2,374,274,626.02
  5. Step 5: Solve for x
    x = 2,374,274,626.02/56,144.13
  6. Step 6: Final answer
    x = 42,288.92

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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.