Home / 76,570.16-114,639.48-57,790.46

Finding the Fourth Proportional to 76,570.16, 114,639.48 and 57,790.46

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Solution

The fourth proportional to 76,570.16, 114,639.48 and 57,790.46 is: 86,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,570.16 : 114,639.48 = 57,790.46 : x
  2. Step 2: Convert to fraction form
    76,570.16/114,639.48 = 57,790.46/x
  3. Step 3: Cross multiply
    76,570.16x = 114,639.48 × 57,790.46
  4. Step 4: Simplify right side
    76,570.16x = 6,625,068,283.36
  5. Step 5: Solve for x
    x = 6,625,068,283.36/76,570.16
  6. Step 6: Final answer
    x = 86,522.85

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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.