Home / 91,429.16-126,182.86-53,190.32

Finding the Fourth Proportional to 91,429.16, 126,182.86 and 53,190.32

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Solution

The fourth proportional to 91,429.16, 126,182.86 and 53,190.32 is: 73,408.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,429.16 : 126,182.86 = 53,190.32 : x
  2. Step 2: Convert to fraction form
    91,429.16/126,182.86 = 53,190.32/x
  3. Step 3: Cross multiply
    91,429.16x = 126,182.86 × 53,190.32
  4. Step 4: Simplify right side
    91,429.16x = 6,711,706,947.00
  5. Step 5: Solve for x
    x = 6,711,706,947.00/91,429.16
  6. Step 6: Final answer
    x = 73,408.83

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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.