Home / 89,071.53-122,859.58-57,280.65

Finding the Fourth Proportional to 89,071.53, 122,859.58 and 57,280.65

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Solution

The fourth proportional to 89,071.53, 122,859.58 and 57,280.65 is: 79,009.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,071.53 : 122,859.58 = 57,280.65 : x
  2. Step 2: Convert to fraction form
    89,071.53/122,859.58 = 57,280.65/x
  3. Step 3: Cross multiply
    89,071.53x = 122,859.58 × 57,280.65
  4. Step 4: Simplify right side
    89,071.53x = 7,037,476,314.72
  5. Step 5: Solve for x
    x = 7,037,476,314.72/89,071.53
  6. Step 6: Final answer
    x = 79,009.27

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1.5x scale

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.