Home / 74,791.17-103,206.48-42,090.36

Finding the Fourth Proportional to 74,791.17, 103,206.48 and 42,090.36

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Solution

The fourth proportional to 74,791.17, 103,206.48 and 42,090.36 is: 58,081.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.17 : 103,206.48 = 42,090.36 : x
  2. Step 2: Convert to fraction form
    74,791.17/103,206.48 = 42,090.36/x
  3. Step 3: Cross multiply
    74,791.17x = 103,206.48 × 42,090.36
  4. Step 4: Simplify right side
    74,791.17x = 4,343,997,897.53
  5. Step 5: Solve for x
    x = 4,343,997,897.53/74,791.17
  6. Step 6: Final answer
    x = 58,081.69

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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.