Home / 56,426.36-77,869.32-30,932.20

Finding the Fourth Proportional to 56,426.36, 77,869.32 and 30,932.20

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Solution

The fourth proportional to 56,426.36, 77,869.32 and 30,932.20 is: 42,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,426.36 : 77,869.32 = 30,932.20 : x
  2. Step 2: Convert to fraction form
    56,426.36/77,869.32 = 30,932.20/x
  3. Step 3: Cross multiply
    56,426.36x = 77,869.32 × 30,932.20
  4. Step 4: Simplify right side
    56,426.36x = 2,408,669,380.10
  5. Step 5: Solve for x
    x = 2,408,669,380.10/56,426.36
  6. Step 6: Final answer
    x = 42,686.95

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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.