Home / 85,010.60-127,406.55-51,695.30

Finding the Fourth Proportional to 85,010.60, 127,406.55 and 51,695.30

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Solution

The fourth proportional to 85,010.60, 127,406.55 and 51,695.30 is: 77,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,010.60 : 127,406.55 = 51,695.30 : x
  2. Step 2: Convert to fraction form
    85,010.60/127,406.55 = 51,695.30/x
  3. Step 3: Cross multiply
    85,010.60x = 127,406.55 × 51,695.30
  4. Step 4: Simplify right side
    85,010.60x = 6,586,319,824.22
  5. Step 5: Solve for x
    x = 6,586,319,824.22/85,010.60
  6. Step 6: Final answer
    x = 77,476.45

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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.