Home / 84,980.16-117,305.28-56,675.52

Finding the Fourth Proportional to 84,980.16, 117,305.28 and 56,675.52

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Solution

The fourth proportional to 84,980.16, 117,305.28 and 56,675.52 is: 78,234.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,980.16 : 117,305.28 = 56,675.52 : x
  2. Step 2: Convert to fraction form
    84,980.16/117,305.28 = 56,675.52/x
  3. Step 3: Cross multiply
    84,980.16x = 117,305.28 × 56,675.52
  4. Step 4: Simplify right side
    84,980.16x = 6,648,337,742.75
  5. Step 5: Solve for x
    x = 6,648,337,742.75/84,980.16
  6. Step 6: Final answer
    x = 78,234.00

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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.