Home / 50,345.30-69,459.22-31,218.18

Finding the Fourth Proportional to 50,345.30, 69,459.22 and 31,218.18

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Solution

The fourth proportional to 50,345.30, 69,459.22 and 31,218.18 is: 43,070.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,345.30 : 69,459.22 = 31,218.18 : x
  2. Step 2: Convert to fraction form
    50,345.30/69,459.22 = 31,218.18/x
  3. Step 3: Cross multiply
    50,345.30x = 69,459.22 × 31,218.18
  4. Step 4: Simplify right side
    50,345.30x = 2,168,390,432.62
  5. Step 5: Solve for x
    x = 2,168,390,432.62/50,345.30
  6. Step 6: Final answer
    x = 43,070.36

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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.