Home / 78,205.80-117,306.48-37,670.16

Finding the Fourth Proportional to 78,205.80, 117,306.48 and 37,670.16

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Solution

The fourth proportional to 78,205.80, 117,306.48 and 37,670.16 is: 56,504.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,205.80 : 117,306.48 = 37,670.16 : x
  2. Step 2: Convert to fraction form
    78,205.80/117,306.48 = 37,670.16/x
  3. Step 3: Cross multiply
    78,205.80x = 117,306.48 × 37,670.16
  4. Step 4: Simplify right side
    78,205.80x = 4,418,953,870.64
  5. Step 5: Solve for x
    x = 4,418,953,870.64/78,205.80
  6. Step 6: Final answer
    x = 56,504.17

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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.