Home / 70,505.13-105,785.36-31,034.55

Finding the Fourth Proportional to 70,505.13, 105,785.36 and 31,034.55

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Solution

The fourth proportional to 70,505.13, 105,785.36 and 31,034.55 is: 46,564.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,505.13 : 105,785.36 = 31,034.55 : x
  2. Step 2: Convert to fraction form
    70,505.13/105,785.36 = 31,034.55/x
  3. Step 3: Cross multiply
    70,505.13x = 105,785.36 × 31,034.55
  4. Step 4: Simplify right side
    70,505.13x = 3,283,000,889.02
  5. Step 5: Solve for x
    x = 3,283,000,889.02/70,505.13
  6. Step 6: Final answer
    x = 46,564.00

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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.