Home / 96,780.34-133,554.90-54,338.86

Finding the Fourth Proportional to 96,780.34, 133,554.90 and 54,338.86

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Solution

The fourth proportional to 96,780.34, 133,554.90 and 54,338.86 is: 74,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,780.34 : 133,554.90 = 54,338.86 : x
  2. Step 2: Convert to fraction form
    96,780.34/133,554.90 = 54,338.86/x
  3. Step 3: Cross multiply
    96,780.34x = 133,554.90 × 54,338.86
  4. Step 4: Simplify right side
    96,780.34x = 7,257,221,013.41
  5. Step 5: Solve for x
    x = 7,257,221,013.41/96,780.34
  6. Step 6: Final answer
    x = 74,986.52

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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.