Home / 56,103.20-77,421.48-30,952.88

Finding the Fourth Proportional to 56,103.20, 77,421.48 and 30,952.88

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Solution

The fourth proportional to 56,103.20, 77,421.48 and 30,952.88 is: 42,714.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,103.20 : 77,421.48 = 30,952.88 : x
  2. Step 2: Convert to fraction form
    56,103.20/77,421.48 = 30,952.88/x
  3. Step 3: Cross multiply
    56,103.20x = 77,421.48 × 30,952.88
  4. Step 4: Simplify right side
    56,103.20x = 2,396,417,779.86
  5. Step 5: Solve for x
    x = 2,396,417,779.86/56,103.20
  6. Step 6: Final answer
    x = 42,714.46

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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.