Home / 63,143.79-87,139.26-37,303.20

Finding the Fourth Proportional to 63,143.79, 87,139.26 and 37,303.20

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Solution

The fourth proportional to 63,143.79, 87,139.26 and 37,303.20 is: 51,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,143.79 : 87,139.26 = 37,303.20 : x
  2. Step 2: Convert to fraction form
    63,143.79/87,139.26 = 37,303.20/x
  3. Step 3: Cross multiply
    63,143.79x = 87,139.26 × 37,303.20
  4. Step 4: Simplify right side
    63,143.79x = 3,250,572,718.64
  5. Step 5: Solve for x
    x = 3,250,572,718.64/63,143.79
  6. Step 6: Final answer
    x = 51,478.90

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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.