Home / 83,361.12-115,038.36-45,635.28

Finding the Fourth Proportional to 83,361.12, 115,038.36 and 45,635.28

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Solution

The fourth proportional to 83,361.12, 115,038.36 and 45,635.28 is: 62,976.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,361.12 : 115,038.36 = 45,635.28 : x
  2. Step 2: Convert to fraction form
    83,361.12/115,038.36 = 45,635.28/x
  3. Step 3: Cross multiply
    83,361.12x = 115,038.36 × 45,635.28
  4. Step 4: Simplify right side
    83,361.12x = 5,249,807,769.34
  5. Step 5: Solve for x
    x = 5,249,807,769.34/83,361.12
  6. Step 6: Final answer
    x = 62,976.69

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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.