Home / 91,627.40-126,439.86-53,894.36

Finding the Fourth Proportional to 91,627.40, 126,439.86 and 53,894.36

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Solution

The fourth proportional to 91,627.40, 126,439.86 and 53,894.36 is: 74,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,627.40 : 126,439.86 = 53,894.36 : x
  2. Step 2: Convert to fraction form
    91,627.40/126,439.86 = 53,894.36/x
  3. Step 3: Cross multiply
    91,627.40x = 126,439.86 × 53,894.36
  4. Step 4: Simplify right side
    91,627.40x = 6,814,395,333.19
  5. Step 5: Solve for x
    x = 6,814,395,333.19/91,627.40
  6. Step 6: Final answer
    x = 74,370.72

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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.