Home / 99,623.61-137,480.67-54,300.67

Finding the Fourth Proportional to 99,623.61, 137,480.67 and 54,300.67

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Solution

The fourth proportional to 99,623.61, 137,480.67 and 54,300.67 is: 74,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,623.61 : 137,480.67 = 54,300.67 : x
  2. Step 2: Convert to fraction form
    99,623.61/137,480.67 = 54,300.67/x
  3. Step 3: Cross multiply
    99,623.61x = 137,480.67 × 54,300.67
  4. Step 4: Simplify right side
    99,623.61x = 7,465,292,149.35
  5. Step 5: Solve for x
    x = 7,465,292,149.35/99,623.61
  6. Step 6: Final answer
    x = 74,934.97

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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.