Home / 77,826.53-107,408.25-45,559.20

Finding the Fourth Proportional to 77,826.53, 107,408.25 and 45,559.20

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Solution

The fourth proportional to 77,826.53, 107,408.25 and 45,559.20 is: 62,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,826.53 : 107,408.25 = 45,559.20 : x
  2. Step 2: Convert to fraction form
    77,826.53/107,408.25 = 45,559.20/x
  3. Step 3: Cross multiply
    77,826.53x = 107,408.25 × 45,559.20
  4. Step 4: Simplify right side
    77,826.53x = 4,893,434,346.18
  5. Step 5: Solve for x
    x = 4,893,434,346.18/77,826.53
  6. Step 6: Final answer
    x = 62,876.17

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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.