Home / 50,345.22-69,459.12-31,218.11

Finding the Fourth Proportional to 50,345.22, 69,459.12 and 31,218.11

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Solution

The fourth proportional to 50,345.22, 69,459.12 and 31,218.11 is: 43,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,345.22 : 69,459.12 = 31,218.11 : x
  2. Step 2: Convert to fraction form
    50,345.22/69,459.12 = 31,218.11/x
  3. Step 3: Cross multiply
    50,345.22x = 69,459.12 × 31,218.11
  4. Step 4: Simplify right side
    50,345.22x = 2,168,382,101.37
  5. Step 5: Solve for x
    x = 2,168,382,101.37/50,345.22
  6. Step 6: Final answer
    x = 43,070.27

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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.