Home / 87,892.81-121,292.02-47,606.56

Finding the Fourth Proportional to 87,892.81, 121,292.02 and 47,606.56

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Solution

The fourth proportional to 87,892.81, 121,292.02 and 47,606.56 is: 65,697.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,892.81 : 121,292.02 = 47,606.56 : x
  2. Step 2: Convert to fraction form
    87,892.81/121,292.02 = 47,606.56/x
  3. Step 3: Cross multiply
    87,892.81x = 121,292.02 × 47,606.56
  4. Step 4: Simplify right side
    87,892.81x = 5,774,295,827.65
  5. Step 5: Solve for x
    x = 5,774,295,827.65/87,892.81
  6. Step 6: Final answer
    x = 65,697.02

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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.