Home / 43,139.10-64,708.65-25,628.70

Finding the Fourth Proportional to 43,139.10, 64,708.65 and 25,628.70

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Solution

The fourth proportional to 43,139.10, 64,708.65 and 25,628.70 is: 38,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.10 : 64,708.65 = 25,628.70 : x
  2. Step 2: Convert to fraction form
    43,139.10/64,708.65 = 25,628.70/x
  3. Step 3: Cross multiply
    43,139.10x = 64,708.65 × 25,628.70
  4. Step 4: Simplify right side
    43,139.10x = 1,658,398,578.26
  5. Step 5: Solve for x
    x = 1,658,398,578.26/43,139.10
  6. Step 6: Final answer
    x = 38,443.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.