Home / 51,159.20-70,603.04-31,017.92

Finding the Fourth Proportional to 51,159.20, 70,603.04 and 31,017.92

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Solution

The fourth proportional to 51,159.20, 70,603.04 and 31,017.92 is: 42,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.20 : 70,603.04 = 31,017.92 : x
  2. Step 2: Convert to fraction form
    51,159.20/70,603.04 = 31,017.92/x
  3. Step 3: Cross multiply
    51,159.20x = 70,603.04 × 31,017.92
  4. Step 4: Simplify right side
    51,159.20x = 2,189,959,446.48
  5. Step 5: Solve for x
    x = 2,189,959,446.48/51,159.20
  6. Step 6: Final answer
    x = 42,806.76

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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.