Home / 81,752.24-112,818.48-47,762.66

Finding the Fourth Proportional to 81,752.24, 112,818.48 and 47,762.66

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Solution

The fourth proportional to 81,752.24, 112,818.48 and 47,762.66 is: 65,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,752.24 : 112,818.48 = 47,762.66 : x
  2. Step 2: Convert to fraction form
    81,752.24/112,818.48 = 47,762.66/x
  3. Step 3: Cross multiply
    81,752.24x = 112,818.48 × 47,762.66
  4. Step 4: Simplify right side
    81,752.24x = 5,388,510,701.96
  5. Step 5: Solve for x
    x = 5,388,510,701.96/81,752.24
  6. Step 6: Final answer
    x = 65,912.70

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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.