Home / 81,509.24-112,502.76-49,695.68

Finding the Fourth Proportional to 81,509.24, 112,502.76 and 49,695.68

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Solution

The fourth proportional to 81,509.24, 112,502.76 and 49,695.68 is: 68,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,509.24 : 112,502.76 = 49,695.68 : x
  2. Step 2: Convert to fraction form
    81,509.24/112,502.76 = 49,695.68/x
  3. Step 3: Cross multiply
    81,509.24x = 112,502.76 × 49,695.68
  4. Step 4: Simplify right side
    81,509.24x = 5,590,901,160.08
  5. Step 5: Solve for x
    x = 5,590,901,160.08/81,509.24
  6. Step 6: Final answer
    x = 68,592.24

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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.