Home / 101,521.81-152,276.23-31,395.25

Finding the Fourth Proportional to 101,521.81, 152,276.23 and 31,395.25

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Solution

The fourth proportional to 101,521.81, 152,276.23 and 31,395.25 is: 47,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,521.81 : 152,276.23 = 31,395.25 : x
  2. Step 2: Convert to fraction form
    101,521.81/152,276.23 = 31,395.25/x
  3. Step 3: Cross multiply
    101,521.81x = 152,276.23 × 31,395.25
  4. Step 4: Simplify right side
    101,521.81x = 4,780,750,309.91
  5. Step 5: Solve for x
    x = 4,780,750,309.91/101,521.81
  6. Step 6: Final answer
    x = 47,090.87

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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.