Home / 45,031.56-67,547.24-42,291.32

Finding the Fourth Proportional to 45,031.56, 67,547.24 and 42,291.32

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Solution

The fourth proportional to 45,031.56, 67,547.24 and 42,291.32 is: 63,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,031.56 : 67,547.24 = 42,291.32 : x
  2. Step 2: Convert to fraction form
    45,031.56/67,547.24 = 42,291.32/x
  3. Step 3: Cross multiply
    45,031.56x = 67,547.24 × 42,291.32
  4. Step 4: Simplify right side
    45,031.56x = 2,856,661,392.76
  5. Step 5: Solve for x
    x = 2,856,661,392.76/45,031.56
  6. Step 6: Final answer
    x = 63,436.87

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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.