Home / 91,328.51-126,028.31-51,034.25

Finding the Fourth Proportional to 91,328.51, 126,028.31 and 51,034.25

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Solution

The fourth proportional to 91,328.51, 126,028.31 and 51,034.25 is: 70,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,328.51 : 126,028.31 = 51,034.25 : x
  2. Step 2: Convert to fraction form
    91,328.51/126,028.31 = 51,034.25/x
  3. Step 3: Cross multiply
    91,328.51x = 126,028.31 × 51,034.25
  4. Step 4: Simplify right side
    91,328.51x = 6,431,760,339.52
  5. Step 5: Solve for x
    x = 6,431,760,339.52/91,328.51
  6. Step 6: Final answer
    x = 70,424.45

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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.