Home / 42,064.11-63,107.51-13,988.70

Finding the Fourth Proportional to 42,064.11, 63,107.51 and 13,988.70

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Solution

The fourth proportional to 42,064.11, 63,107.51 and 13,988.70 is: 20,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,064.11 : 63,107.51 = 13,988.70 : x
  2. Step 2: Convert to fraction form
    42,064.11/63,107.51 = 13,988.70/x
  3. Step 3: Cross multiply
    42,064.11x = 63,107.51 × 13,988.70
  4. Step 4: Simplify right side
    42,064.11x = 882,791,955.19
  5. Step 5: Solve for x
    x = 882,791,955.19/42,064.11
  6. Step 6: Final answer
    x = 20,986.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.