Home / 78,926.67-118,412.01-43,890.93

Finding the Fourth Proportional to 78,926.67, 118,412.01 and 43,890.93

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Solution

The fourth proportional to 78,926.67, 118,412.01 and 43,890.93 is: 65,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,926.67 : 118,412.01 = 43,890.93 : x
  2. Step 2: Convert to fraction form
    78,926.67/118,412.01 = 43,890.93/x
  3. Step 3: Cross multiply
    78,926.67x = 118,412.01 × 43,890.93
  4. Step 4: Simplify right side
    78,926.67x = 5,197,213,242.07
  5. Step 5: Solve for x
    x = 5,197,213,242.07/78,926.67
  6. Step 6: Final answer
    x = 65,848.63

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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.