Home / 99,669.51-137,541.51-57,227.13

Finding the Fourth Proportional to 99,669.51, 137,541.51 and 57,227.13

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Solution

The fourth proportional to 99,669.51, 137,541.51 and 57,227.13 is: 78,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,669.51 : 137,541.51 = 57,227.13 : x
  2. Step 2: Convert to fraction form
    99,669.51/137,541.51 = 57,227.13/x
  3. Step 3: Cross multiply
    99,669.51x = 137,541.51 × 57,227.13
  4. Step 4: Simplify right side
    99,669.51x = 7,871,105,873.17
  5. Step 5: Solve for x
    x = 7,871,105,873.17/99,669.51
  6. Step 6: Final answer
    x = 78,972.05

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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.