Home / 75,165.04-103,691.48-49,681.36

Finding the Fourth Proportional to 75,165.04, 103,691.48 and 49,681.36

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Solution

The fourth proportional to 75,165.04, 103,691.48 and 49,681.36 is: 68,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,165.04 : 103,691.48 = 49,681.36 : x
  2. Step 2: Convert to fraction form
    75,165.04/103,691.48 = 49,681.36/x
  3. Step 3: Cross multiply
    75,165.04x = 103,691.48 × 49,681.36
  4. Step 4: Simplify right side
    75,165.04x = 5,151,533,746.81
  5. Step 5: Solve for x
    x = 5,151,533,746.81/75,165.04
  6. Step 6: Final answer
    x = 68,536.30

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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.