Home / 79,201.65-109,298.36-42,903.18

Finding the Fourth Proportional to 79,201.65, 109,298.36 and 42,903.18

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Solution

The fourth proportional to 79,201.65, 109,298.36 and 42,903.18 is: 59,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,201.65 : 109,298.36 = 42,903.18 : x
  2. Step 2: Convert to fraction form
    79,201.65/109,298.36 = 42,903.18/x
  3. Step 3: Cross multiply
    79,201.65x = 109,298.36 × 42,903.18
  4. Step 4: Simplify right side
    79,201.65x = 4,689,247,212.78
  5. Step 5: Solve for x
    x = 4,689,247,212.78/79,201.65
  6. Step 6: Final answer
    x = 59,206.43

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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.