Home / 63,243.19-87,174.10-42,818.74

Finding the Fourth Proportional to 63,243.19, 87,174.10 and 42,818.74

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Solution

The fourth proportional to 63,243.19, 87,174.10 and 42,818.74 is: 59,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,243.19 : 87,174.10 = 42,818.74 : x
  2. Step 2: Convert to fraction form
    63,243.19/87,174.10 = 42,818.74/x
  3. Step 3: Cross multiply
    63,243.19x = 87,174.10 × 42,818.74
  4. Step 4: Simplify right side
    63,243.19x = 3,732,684,797.65
  5. Step 5: Solve for x
    x = 3,732,684,797.65/63,243.19
  6. Step 6: Final answer
    x = 59,021.14

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1.5x scale

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.