Home / 85,036.35-127,445.18-51,721.05

Finding the Fourth Proportional to 85,036.35, 127,445.18 and 51,721.05

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Solution

The fourth proportional to 85,036.35, 127,445.18 and 51,721.05 is: 77,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,036.35 : 127,445.18 = 51,721.05 : x
  2. Step 2: Convert to fraction form
    85,036.35/127,445.18 = 51,721.05/x
  3. Step 3: Cross multiply
    85,036.35x = 127,445.18 × 51,721.05
  4. Step 4: Simplify right side
    85,036.35x = 6,591,598,268.43
  5. Step 5: Solve for x
    x = 6,591,598,268.43/85,036.35
  6. Step 6: Final answer
    x = 77,515.07

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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.