Home / 69,141.80-95,417.49-38,928.20

Finding the Fourth Proportional to 69,141.80, 95,417.49 and 38,928.20

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Solution

The fourth proportional to 69,141.80, 95,417.49 and 38,928.20 is: 53,721.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,141.80 : 95,417.49 = 38,928.20 : x
  2. Step 2: Convert to fraction form
    69,141.80/95,417.49 = 38,928.20/x
  3. Step 3: Cross multiply
    69,141.80x = 95,417.49 × 38,928.20
  4. Step 4: Simplify right side
    69,141.80x = 3,714,430,803.11
  5. Step 5: Solve for x
    x = 3,714,430,803.11/69,141.80
  6. Step 6: Final answer
    x = 53,721.93

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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.