Home / 89,013.95-133,428.66-55,657.42

Finding the Fourth Proportional to 89,013.95, 133,428.66 and 55,657.42

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Solution

The fourth proportional to 89,013.95, 133,428.66 and 55,657.42 is: 83,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,013.95 : 133,428.66 = 55,657.42 : x
  2. Step 2: Convert to fraction form
    89,013.95/133,428.66 = 55,657.42/x
  3. Step 3: Cross multiply
    89,013.95x = 133,428.66 × 55,657.42
  4. Step 4: Simplify right side
    89,013.95x = 7,426,294,636.09
  5. Step 5: Solve for x
    x = 7,426,294,636.09/89,013.95
  6. Step 6: Final answer
    x = 83,428.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.