Home / 67,970.13-101,976.86-28,516.65

Finding the Fourth Proportional to 67,970.13, 101,976.86 and 28,516.65

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Solution

The fourth proportional to 67,970.13, 101,976.86 and 28,516.65 is: 42,784.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,970.13 : 101,976.86 = 28,516.65 : x
  2. Step 2: Convert to fraction form
    67,970.13/101,976.86 = 28,516.65/x
  3. Step 3: Cross multiply
    67,970.13x = 101,976.86 × 28,516.65
  4. Step 4: Simplify right side
    67,970.13x = 2,908,037,772.25
  5. Step 5: Solve for x
    x = 2,908,037,772.25/67,970.13
  6. Step 6: Final answer
    x = 42,784.06

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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.