Home / 47,162.12-65,117.05-31,279.64

Finding the Fourth Proportional to 47,162.12, 65,117.05 and 31,279.64

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Solution

The fourth proportional to 47,162.12, 65,117.05 and 31,279.64 is: 43,188.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,162.12 : 65,117.05 = 31,279.64 : x
  2. Step 2: Convert to fraction form
    47,162.12/65,117.05 = 31,279.64/x
  3. Step 3: Cross multiply
    47,162.12x = 65,117.05 × 31,279.64
  4. Step 4: Simplify right side
    47,162.12x = 2,036,837,478.08
  5. Step 5: Solve for x
    x = 2,036,837,478.08/47,162.12
  6. Step 6: Final answer
    x = 43,188.00

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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.