Home / 63,020-86,964.80-34,339.76

Finding the Fourth Proportional to 63,020, 86,964.80 and 34,339.76

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Solution

The fourth proportional to 63,020, 86,964.80 and 34,339.76 is: 47,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,020 : 86,964.80 = 34,339.76 : x
  2. Step 2: Convert to fraction form
    63,020/86,964.80 = 34,339.76/x
  3. Step 3: Cross multiply
    63,020x = 86,964.80 × 34,339.76
  4. Step 4: Simplify right side
    63,020x = 2,986,350,360.45
  5. Step 5: Solve for x
    x = 2,986,350,360.45/63,020
  6. Step 6: Final answer
    x = 47,387.34

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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.