Home / 74,534.13-102,860.69-42,703.11

Finding the Fourth Proportional to 74,534.13, 102,860.69 and 42,703.11

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Solution

The fourth proportional to 74,534.13, 102,860.69 and 42,703.11 is: 58,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,534.13 : 102,860.69 = 42,703.11 : x
  2. Step 2: Convert to fraction form
    74,534.13/102,860.69 = 42,703.11/x
  3. Step 3: Cross multiply
    74,534.13x = 102,860.69 × 42,703.11
  4. Step 4: Simplify right side
    74,534.13x = 4,392,471,146.23
  5. Step 5: Solve for x
    x = 4,392,471,146.23/74,534.13
  6. Step 6: Final answer
    x = 58,932.35

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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.