Home / 83,015.04-114,603.12-56,298.72

Finding the Fourth Proportional to 83,015.04, 114,603.12 and 56,298.72

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Solution

The fourth proportional to 83,015.04, 114,603.12 and 56,298.72 is: 77,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,015.04 : 114,603.12 = 56,298.72 : x
  2. Step 2: Convert to fraction form
    83,015.04/114,603.12 = 56,298.72/x
  3. Step 3: Cross multiply
    83,015.04x = 114,603.12 × 56,298.72
  4. Step 4: Simplify right side
    83,015.04x = 6,452,008,964.01
  5. Step 5: Solve for x
    x = 6,452,008,964.01/83,015.04
  6. Step 6: Final answer
    x = 77,720.96

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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.