Home / 99,427.33-137,212.25-54,107.77

Finding the Fourth Proportional to 99,427.33, 137,212.25 and 54,107.77

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Solution

The fourth proportional to 99,427.33, 137,212.25 and 54,107.77 is: 74,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,427.33 : 137,212.25 = 54,107.77 : x
  2. Step 2: Convert to fraction form
    99,427.33/137,212.25 = 54,107.77/x
  3. Step 3: Cross multiply
    99,427.33x = 137,212.25 × 54,107.77
  4. Step 4: Simplify right side
    99,427.33x = 7,424,248,864.18
  5. Step 5: Solve for x
    x = 7,424,248,864.18/99,427.33
  6. Step 6: Final answer
    x = 74,670.10

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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.