Home / 78,998.23-118,485.63-29,066.65

Finding the Fourth Proportional to 78,998.23, 118,485.63 and 29,066.65

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Solution

The fourth proportional to 78,998.23, 118,485.63 and 29,066.65 is: 43,595.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,998.23 : 118,485.63 = 29,066.65 : x
  2. Step 2: Convert to fraction form
    78,998.23/118,485.63 = 29,066.65/x
  3. Step 3: Cross multiply
    78,998.23x = 118,485.63 × 29,066.65
  4. Step 4: Simplify right side
    78,998.23x = 3,443,980,337.24
  5. Step 5: Solve for x
    x = 3,443,980,337.24/78,998.23
  6. Step 6: Final answer
    x = 43,595.66

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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.