Home / 49,991.08-69,001.38-31,117

Finding the Fourth Proportional to 49,991.08, 69,001.38 and 31,117

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Solution

The fourth proportional to 49,991.08, 69,001.38 and 31,117 is: 42,949.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,991.08 : 69,001.38 = 31,117 : x
  2. Step 2: Convert to fraction form
    49,991.08/69,001.38 = 31,117/x
  3. Step 3: Cross multiply
    49,991.08x = 69,001.38 × 31,117
  4. Step 4: Simplify right side
    49,991.08x = 2,147,115,941.46
  5. Step 5: Solve for x
    x = 2,147,115,941.46/49,991.08
  6. Step 6: Final answer
    x = 42,949.98

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1.5x scale

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.