Home / 70,613.20-97,446.48-38,782.72

Finding the Fourth Proportional to 70,613.20, 97,446.48 and 38,782.72

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Solution

The fourth proportional to 70,613.20, 97,446.48 and 38,782.72 is: 53,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,613.20 : 97,446.48 = 38,782.72 : x
  2. Step 2: Convert to fraction form
    70,613.20/97,446.48 = 38,782.72/x
  3. Step 3: Cross multiply
    70,613.20x = 97,446.48 × 38,782.72
  4. Step 4: Simplify right side
    70,613.20x = 3,779,239,548.83
  5. Step 5: Solve for x
    x = 3,779,239,548.83/70,613.20
  6. Step 6: Final answer
    x = 53,520.30

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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.