Home / 91,678.15-126,542.73-59,851.81

Finding the Fourth Proportional to 91,678.15, 126,542.73 and 59,851.81

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Solution

The fourth proportional to 91,678.15, 126,542.73 and 59,851.81 is: 82,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,678.15 : 126,542.73 = 59,851.81 : x
  2. Step 2: Convert to fraction form
    91,678.15/126,542.73 = 59,851.81/x
  3. Step 3: Cross multiply
    91,678.15x = 126,542.73 × 59,851.81
  4. Step 4: Simplify right side
    91,678.15x = 7,573,811,432.84
  5. Step 5: Solve for x
    x = 7,573,811,432.84/91,678.15
  6. Step 6: Final answer
    x = 82,613.05

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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.