Home / 84,876.72-127,140.12-49,709.76

Finding the Fourth Proportional to 84,876.72, 127,140.12 and 49,709.76

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Solution

The fourth proportional to 84,876.72, 127,140.12 and 49,709.76 is: 74,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,876.72 : 127,140.12 = 49,709.76 : x
  2. Step 2: Convert to fraction form
    84,876.72/127,140.12 = 49,709.76/x
  3. Step 3: Cross multiply
    84,876.72x = 127,140.12 × 49,709.76
  4. Step 4: Simplify right side
    84,876.72x = 6,320,104,851.57
  5. Step 5: Solve for x
    x = 6,320,104,851.57/84,876.72
  6. Step 6: Final answer
    x = 74,462.17

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1.5x scale

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.