Home / 85,285.80-127,953.30-26,130.18

Finding the Fourth Proportional to 85,285.80, 127,953.30 and 26,130.18

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Solution

The fourth proportional to 85,285.80, 127,953.30 and 26,130.18 is: 39,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,285.80 : 127,953.30 = 26,130.18 : x
  2. Step 2: Convert to fraction form
    85,285.80/127,953.30 = 26,130.18/x
  3. Step 3: Cross multiply
    85,285.80x = 127,953.30 × 26,130.18
  4. Step 4: Simplify right side
    85,285.80x = 3,343,442,760.59
  5. Step 5: Solve for x
    x = 3,343,442,760.59/85,285.80
  6. Step 6: Final answer
    x = 39,202.81

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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.