Home / 89,981.57-124,163.52-57,264.69

Finding the Fourth Proportional to 89,981.57, 124,163.52 and 57,264.69

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Solution

The fourth proportional to 89,981.57, 124,163.52 and 57,264.69 is: 79,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.57 : 124,163.52 = 57,264.69 : x
  2. Step 2: Convert to fraction form
    89,981.57/124,163.52 = 57,264.69/x
  3. Step 3: Cross multiply
    89,981.57x = 124,163.52 × 57,264.69
  4. Step 4: Simplify right side
    89,981.57x = 7,110,185,482.11
  5. Step 5: Solve for x
    x = 7,110,185,482.11/89,981.57
  6. Step 6: Final answer
    x = 79,018.25

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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.