Home / 72,421.40-108,658.20-32,437.10

Finding the Fourth Proportional to 72,421.40, 108,658.20 and 32,437.10

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Solution

The fourth proportional to 72,421.40, 108,658.20 and 32,437.10 is: 48,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,421.40 : 108,658.20 = 32,437.10 : x
  2. Step 2: Convert to fraction form
    72,421.40/108,658.20 = 32,437.10/x
  3. Step 3: Cross multiply
    72,421.40x = 108,658.20 × 32,437.10
  4. Step 4: Simplify right side
    72,421.40x = 3,524,556,899.22
  5. Step 5: Solve for x
    x = 3,524,556,899.22/72,421.40
  6. Step 6: Final answer
    x = 48,667.34

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1.5x scale

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.