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Finding the Fourth Proportional to 84,756.98, 127,154.67 and 45,293.30

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Solution

The fourth proportional to 84,756.98, 127,154.67 and 45,293.30 is: 67,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,756.98 : 127,154.67 = 45,293.30 : x
  2. Step 2: Convert to fraction form
    84,756.98/127,154.67 = 45,293.30/x
  3. Step 3: Cross multiply
    84,756.98x = 127,154.67 × 45,293.30
  4. Step 4: Simplify right side
    84,756.98x = 5,759,254,614.71
  5. Step 5: Solve for x
    x = 5,759,254,614.71/84,756.98
  6. Step 6: Final answer
    x = 67,950.21

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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.