Home / 74,681.11-103,058.73-40,690.00

Finding the Fourth Proportional to 74,681.11, 103,058.73 and 40,690.00

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Solution

The fourth proportional to 74,681.11, 103,058.73 and 40,690.00 is: 56,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681.11 : 103,058.73 = 40,690.00 : x
  2. Step 2: Convert to fraction form
    74,681.11/103,058.73 = 40,690.00/x
  3. Step 3: Cross multiply
    74,681.11x = 103,058.73 × 40,690.00
  4. Step 4: Simplify right side
    74,681.11x = 4,193,459,272.82
  5. Step 5: Solve for x
    x = 4,193,459,272.82/74,681.11
  6. Step 6: Final answer
    x = 56,151.54

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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.