Home / 81,013.64-121,533.42-34,266.92

Finding the Fourth Proportional to 81,013.64, 121,533.42 and 34,266.92

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Solution

The fourth proportional to 81,013.64, 121,533.42 and 34,266.92 is: 51,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,013.64 : 121,533.42 = 34,266.92 : x
  2. Step 2: Convert to fraction form
    81,013.64/121,533.42 = 34,266.92/x
  3. Step 3: Cross multiply
    81,013.64x = 121,533.42 × 34,266.92
  4. Step 4: Simplify right side
    81,013.64x = 4,164,575,980.47
  5. Step 5: Solve for x
    x = 4,164,575,980.47/81,013.64
  6. Step 6: Final answer
    x = 51,405.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.