Home / 91,112.52-125,746.20-53,386.74

Finding the Fourth Proportional to 91,112.52, 125,746.20 and 53,386.74

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Solution

The fourth proportional to 91,112.52, 125,746.20 and 53,386.74 is: 73,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,112.52 : 125,746.20 = 53,386.74 : x
  2. Step 2: Convert to fraction form
    91,112.52/125,746.20 = 53,386.74/x
  3. Step 3: Cross multiply
    91,112.52x = 125,746.20 × 53,386.74
  4. Step 4: Simplify right side
    91,112.52x = 6,713,179,685.39
  5. Step 5: Solve for x
    x = 6,713,179,685.39/91,112.52
  6. Step 6: Final answer
    x = 73,680.10

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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.