Home / 77,977.28-116,938.32-25,376.96

Finding the Fourth Proportional to 77,977.28, 116,938.32 and 25,376.96

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Solution

The fourth proportional to 77,977.28, 116,938.32 and 25,376.96 is: 38,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,977.28 : 116,938.32 = 25,376.96 : x
  2. Step 2: Convert to fraction form
    77,977.28/116,938.32 = 25,376.96/x
  3. Step 3: Cross multiply
    77,977.28x = 116,938.32 × 25,376.96
  4. Step 4: Simplify right side
    77,977.28x = 2,967,539,069.11
  5. Step 5: Solve for x
    x = 2,967,539,069.11/77,977.28
  6. Step 6: Final answer
    x = 38,056.46

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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.