Home / 91,907.71-126,844.53-51,621.47

Finding the Fourth Proportional to 91,907.71, 126,844.53 and 51,621.47

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Solution

The fourth proportional to 91,907.71, 126,844.53 and 51,621.47 is: 71,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,907.71 : 126,844.53 = 51,621.47 : x
  2. Step 2: Convert to fraction form
    91,907.71/126,844.53 = 51,621.47/x
  3. Step 3: Cross multiply
    91,907.71x = 126,844.53 × 51,621.47
  4. Step 4: Simplify right side
    91,907.71x = 6,547,901,100.06
  5. Step 5: Solve for x
    x = 6,547,901,100.06/91,907.71
  6. Step 6: Final answer
    x = 71,244.31

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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.