Home / 99,319.64-137,063.80-54,000.68

Finding the Fourth Proportional to 99,319.64, 137,063.80 and 54,000.68

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Solution

The fourth proportional to 99,319.64, 137,063.80 and 54,000.68 is: 74,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,319.64 : 137,063.80 = 54,000.68 : x
  2. Step 2: Convert to fraction form
    99,319.64/137,063.80 = 54,000.68/x
  3. Step 3: Cross multiply
    99,319.64x = 137,063.80 × 54,000.68
  4. Step 4: Simplify right side
    99,319.64x = 7,401,537,481.81
  5. Step 5: Solve for x
    x = 7,401,537,481.81/99,319.64
  6. Step 6: Final answer
    x = 74,522.40

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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.