Home / 77,989.28-116,999.70-25,384.64

Finding the Fourth Proportional to 77,989.28, 116,999.70 and 25,384.64

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Solution

The fourth proportional to 77,989.28, 116,999.70 and 25,384.64 is: 38,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,989.28 : 116,999.70 = 25,384.64 : x
  2. Step 2: Convert to fraction form
    77,989.28/116,999.70 = 25,384.64/x
  3. Step 3: Cross multiply
    77,989.28x = 116,999.70 × 25,384.64
  4. Step 4: Simplify right side
    77,989.28x = 2,969,995,264.61
  5. Step 5: Solve for x
    x = 2,969,995,264.61/77,989.28
  6. Step 6: Final answer
    x = 38,082.10

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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.