Home / 66,127.84-99,646.36-54,697.12

Finding the Fourth Proportional to 66,127.84, 99,646.36 and 54,697.12

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Solution

The fourth proportional to 66,127.84, 99,646.36 and 54,697.12 is: 82,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,127.84 : 99,646.36 = 54,697.12 : x
  2. Step 2: Convert to fraction form
    66,127.84/99,646.36 = 54,697.12/x
  3. Step 3: Cross multiply
    66,127.84x = 99,646.36 × 54,697.12
  4. Step 4: Simplify right side
    66,127.84x = 5,450,368,910.48
  5. Step 5: Solve for x
    x = 5,450,368,910.48/66,127.84
  6. Step 6: Final answer
    x = 82,421.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.