Home / 90,999.76-125,580.09-52,781.93

Finding the Fourth Proportional to 90,999.76, 125,580.09 and 52,781.93

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Solution

The fourth proportional to 90,999.76, 125,580.09 and 52,781.93 is: 72,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,999.76 : 125,580.09 = 52,781.93 : x
  2. Step 2: Convert to fraction form
    90,999.76/125,580.09 = 52,781.93/x
  3. Step 3: Cross multiply
    90,999.76x = 125,580.09 × 52,781.93
  4. Step 4: Simplify right side
    90,999.76x = 6,628,360,019.70
  5. Step 5: Solve for x
    x = 6,628,360,019.70/90,999.76
  6. Step 6: Final answer
    x = 72,839.31

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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.