Home / 99,428.33-137,213.63-54,108.77

Finding the Fourth Proportional to 99,428.33, 137,213.63 and 54,108.77

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Solution

The fourth proportional to 99,428.33, 137,213.63 and 54,108.77 is: 74,671.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,428.33 : 137,213.63 = 54,108.77 : x
  2. Step 2: Convert to fraction form
    99,428.33/137,213.63 = 54,108.77/x
  3. Step 3: Cross multiply
    99,428.33x = 137,213.63 × 54,108.77
  4. Step 4: Simplify right side
    99,428.33x = 7,424,460,746.54
  5. Step 5: Solve for x
    x = 7,424,460,746.54/99,428.33
  6. Step 6: Final answer
    x = 74,671.48

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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.