Home / 74,677.95-103,054.34-40,686.84

Finding the Fourth Proportional to 74,677.95, 103,054.34 and 40,686.84

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Solution

The fourth proportional to 74,677.95, 103,054.34 and 40,686.84 is: 56,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,677.95 : 103,054.34 = 40,686.84 : x
  2. Step 2: Convert to fraction form
    74,677.95/103,054.34 = 40,686.84/x
  3. Step 3: Cross multiply
    74,677.95x = 103,054.34 × 40,686.84
  4. Step 4: Simplify right side
    74,677.95x = 4,192,955,544.60
  5. Step 5: Solve for x
    x = 4,192,955,544.60/74,677.95
  6. Step 6: Final answer
    x = 56,147.17

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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.