Home / 91,768.40-126,628.26-51,480.62

Finding the Fourth Proportional to 91,768.40, 126,628.26 and 51,480.62

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Solution

The fourth proportional to 91,768.40, 126,628.26 and 51,480.62 is: 71,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,768.40 : 126,628.26 = 51,480.62 : x
  2. Step 2: Convert to fraction form
    91,768.40/126,628.26 = 51,480.62/x
  3. Step 3: Cross multiply
    91,768.40x = 126,628.26 × 51,480.62
  4. Step 4: Simplify right side
    91,768.40x = 6,518,901,334.32
  5. Step 5: Solve for x
    x = 6,518,901,334.32/91,768.40
  6. Step 6: Final answer
    x = 71,036.45

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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.