Home / 80,774.66-111,562.35-53,870.41

Finding the Fourth Proportional to 80,774.66, 111,562.35 and 53,870.41

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Solution

The fourth proportional to 80,774.66, 111,562.35 and 53,870.41 is: 74,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,774.66 : 111,562.35 = 53,870.41 : x
  2. Step 2: Convert to fraction form
    80,774.66/111,562.35 = 53,870.41/x
  3. Step 3: Cross multiply
    80,774.66x = 111,562.35 × 53,870.41
  4. Step 4: Simplify right side
    80,774.66x = 6,009,909,535.06
  5. Step 5: Solve for x
    x = 6,009,909,535.06/80,774.66
  6. Step 6: Final answer
    x = 74,403.40

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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.