Home / 68,531.08-94,603.64-40,238.52

Finding the Fourth Proportional to 68,531.08, 94,603.64 and 40,238.52

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Solution

The fourth proportional to 68,531.08, 94,603.64 and 40,238.52 is: 55,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531.08 : 94,603.64 = 40,238.52 : x
  2. Step 2: Convert to fraction form
    68,531.08/94,603.64 = 40,238.52/x
  3. Step 3: Cross multiply
    68,531.08x = 94,603.64 × 40,238.52
  4. Step 4: Simplify right side
    68,531.08x = 3,806,710,460.21
  5. Step 5: Solve for x
    x = 3,806,710,460.21/68,531.08
  6. Step 6: Final answer
    x = 55,547.21

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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.