Home / 67,970.10-101,955.15-51,381.30

Finding the Fourth Proportional to 67,970.10, 101,955.15 and 51,381.30

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Solution

The fourth proportional to 67,970.10, 101,955.15 and 51,381.30 is: 77,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,970.10 : 101,955.15 = 51,381.30 : x
  2. Step 2: Convert to fraction form
    67,970.10/101,955.15 = 51,381.30/x
  3. Step 3: Cross multiply
    67,970.10x = 101,955.15 × 51,381.30
  4. Step 4: Simplify right side
    67,970.10x = 5,238,588,148.70
  5. Step 5: Solve for x
    x = 5,238,588,148.70/67,970.10
  6. Step 6: Final answer
    x = 77,071.95

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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.