Home / 74,836.40-112,157.10-30,411.22

Finding the Fourth Proportional to 74,836.40, 112,157.10 and 30,411.22

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Solution

The fourth proportional to 74,836.40, 112,157.10 and 30,411.22 is: 45,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,836.40 : 112,157.10 = 30,411.22 : x
  2. Step 2: Convert to fraction form
    74,836.40/112,157.10 = 30,411.22/x
  3. Step 3: Cross multiply
    74,836.40x = 112,157.10 × 30,411.22
  4. Step 4: Simplify right side
    74,836.40x = 3,410,834,242.66
  5. Step 5: Solve for x
    x = 3,410,834,242.66/74,836.40
  6. Step 6: Final answer
    x = 45,577.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.