Home / 79,005.36-109,034.66-45,018.47

Finding the Fourth Proportional to 79,005.36, 109,034.66 and 45,018.47

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Solution

The fourth proportional to 79,005.36, 109,034.66 and 45,018.47 is: 62,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,005.36 : 109,034.66 = 45,018.47 : x
  2. Step 2: Convert to fraction form
    79,005.36/109,034.66 = 45,018.47/x
  3. Step 3: Cross multiply
    79,005.36x = 109,034.66 × 45,018.47
  4. Step 4: Simplify right side
    79,005.36x = 4,908,572,799.90
  5. Step 5: Solve for x
    x = 4,908,572,799.90/79,005.36
  6. Step 6: Final answer
    x = 62,129.62

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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.