Home / 73,879.12-101,953.56-40,345.12

Finding the Fourth Proportional to 73,879.12, 101,953.56 and 40,345.12

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Solution

The fourth proportional to 73,879.12, 101,953.56 and 40,345.12 is: 55,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,879.12 : 101,953.56 = 40,345.12 : x
  2. Step 2: Convert to fraction form
    73,879.12/101,953.56 = 40,345.12/x
  3. Step 3: Cross multiply
    73,879.12x = 101,953.56 × 40,345.12
  4. Step 4: Simplify right side
    73,879.12x = 4,113,328,612.63
  5. Step 5: Solve for x
    x = 4,113,328,612.63/73,879.12
  6. Step 6: Final answer
    x = 55,676.47

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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.