Home / 89,065.65-122,910.60-48,779.51

Finding the Fourth Proportional to 89,065.65, 122,910.60 and 48,779.51

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Solution

The fourth proportional to 89,065.65, 122,910.60 and 48,779.51 is: 67,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,065.65 : 122,910.60 = 48,779.51 : x
  2. Step 2: Convert to fraction form
    89,065.65/122,910.60 = 48,779.51/x
  3. Step 3: Cross multiply
    89,065.65x = 122,910.60 × 48,779.51
  4. Step 4: Simplify right side
    89,065.65x = 5,995,518,841.81
  5. Step 5: Solve for x
    x = 5,995,518,841.81/89,065.65
  6. Step 6: Final answer
    x = 67,315.73

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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.