Home / 63,458.40-87,615.36-56,722.44

Finding the Fourth Proportional to 63,458.40, 87,615.36 and 56,722.44

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Solution

The fourth proportional to 63,458.40, 87,615.36 and 56,722.44 is: 78,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,458.40 : 87,615.36 = 56,722.44 : x
  2. Step 2: Convert to fraction form
    63,458.40/87,615.36 = 56,722.44/x
  3. Step 3: Cross multiply
    63,458.40x = 87,615.36 × 56,722.44
  4. Step 4: Simplify right side
    63,458.40x = 4,969,757,000.68
  5. Step 5: Solve for x
    x = 4,969,757,000.68/63,458.40
  6. Step 6: Final answer
    x = 78,315.20

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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.