Home / 89,849.64-123,985.86-52,117.80

Finding the Fourth Proportional to 89,849.64, 123,985.86 and 52,117.80

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Solution

The fourth proportional to 89,849.64, 123,985.86 and 52,117.80 is: 71,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849.64 : 123,985.86 = 52,117.80 : x
  2. Step 2: Convert to fraction form
    89,849.64/123,985.86 = 52,117.80/x
  3. Step 3: Cross multiply
    89,849.64x = 123,985.86 × 52,117.80
  4. Step 4: Simplify right side
    89,849.64x = 6,461,870,254.31
  5. Step 5: Solve for x
    x = 6,461,870,254.31/89,849.64
  6. Step 6: Final answer
    x = 71,918.71

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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.