Home / 79,419.96-109,624.14-51,125.63

Finding the Fourth Proportional to 79,419.96, 109,624.14 and 51,125.63

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Solution

The fourth proportional to 79,419.96, 109,624.14 and 51,125.63 is: 70,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,419.96 : 109,624.14 = 51,125.63 : x
  2. Step 2: Convert to fraction form
    79,419.96/109,624.14 = 51,125.63/x
  3. Step 3: Cross multiply
    79,419.96x = 109,624.14 × 51,125.63
  4. Step 4: Simplify right side
    79,419.96x = 5,604,602,672.59
  5. Step 5: Solve for x
    x = 5,604,602,672.59/79,419.96
  6. Step 6: Final answer
    x = 70,569.20

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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.