Home / 81,316.76-112,225.46-51,125.22

Finding the Fourth Proportional to 81,316.76, 112,225.46 and 51,125.22

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Solution

The fourth proportional to 81,316.76, 112,225.46 and 51,125.22 is: 70,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,316.76 : 112,225.46 = 51,125.22 : x
  2. Step 2: Convert to fraction form
    81,316.76/112,225.46 = 51,125.22/x
  3. Step 3: Cross multiply
    81,316.76x = 112,225.46 × 51,125.22
  4. Step 4: Simplify right side
    81,316.76x = 5,737,551,076.48
  5. Step 5: Solve for x
    x = 5,737,551,076.48/81,316.76
  6. Step 6: Final answer
    x = 70,558.04

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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.