Home / 78,688.48-108,586.69-44,696.86

Finding the Fourth Proportional to 78,688.48, 108,586.69 and 44,696.86

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Solution

The fourth proportional to 78,688.48, 108,586.69 and 44,696.86 is: 61,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,688.48 : 108,586.69 = 44,696.86 : x
  2. Step 2: Convert to fraction form
    78,688.48/108,586.69 = 44,696.86/x
  3. Step 3: Cross multiply
    78,688.48x = 108,586.69 × 44,696.86
  4. Step 4: Simplify right side
    78,688.48x = 4,853,484,080.79
  5. Step 5: Solve for x
    x = 4,853,484,080.79/78,688.48
  6. Step 6: Final answer
    x = 61,679.73

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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.