Home / 56,023.11-77,311.13-30,530.52

Finding the Fourth Proportional to 56,023.11, 77,311.13 and 30,530.52

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Solution

The fourth proportional to 56,023.11, 77,311.13 and 30,530.52 is: 42,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,023.11 : 77,311.13 = 30,530.52 : x
  2. Step 2: Convert to fraction form
    56,023.11/77,311.13 = 30,530.52/x
  3. Step 3: Cross multiply
    56,023.11x = 77,311.13 × 30,530.52
  4. Step 4: Simplify right side
    56,023.11x = 2,360,348,848.04
  5. Step 5: Solve for x
    x = 2,360,348,848.04/56,023.11
  6. Step 6: Final answer
    x = 42,131.70

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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.