Home / 91,613.43-126,364.86-53,887.68

Finding the Fourth Proportional to 91,613.43, 126,364.86 and 53,887.68

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Solution

The fourth proportional to 91,613.43, 126,364.86 and 53,887.68 is: 74,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,613.43 : 126,364.86 = 53,887.68 : x
  2. Step 2: Convert to fraction form
    91,613.43/126,364.86 = 53,887.68/x
  3. Step 3: Cross multiply
    91,613.43x = 126,364.86 × 53,887.68
  4. Step 4: Simplify right side
    91,613.43x = 6,809,509,138.92
  5. Step 5: Solve for x
    x = 6,809,509,138.92/91,613.43
  6. Step 6: Final answer
    x = 74,328.72

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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.