Home / 89,393.46-134,145.56-51,971.14

Finding the Fourth Proportional to 89,393.46, 134,145.56 and 51,971.14

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Solution

The fourth proportional to 89,393.46, 134,145.56 and 51,971.14 is: 77,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,393.46 : 134,145.56 = 51,971.14 : x
  2. Step 2: Convert to fraction form
    89,393.46/134,145.56 = 51,971.14/x
  3. Step 3: Cross multiply
    89,393.46x = 134,145.56 × 51,971.14
  4. Step 4: Simplify right side
    89,393.46x = 6,971,697,679.14
  5. Step 5: Solve for x
    x = 6,971,697,679.14/89,393.46
  6. Step 6: Final answer
    x = 77,988.90

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1.5x scale

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.