Home / 55,865.83-83,780.74-18,417.19

Finding the Fourth Proportional to 55,865.83, 83,780.74 and 18,417.19

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Solution

The fourth proportional to 55,865.83, 83,780.74 and 18,417.19 is: 27,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,865.83 : 83,780.74 = 18,417.19 : x
  2. Step 2: Convert to fraction form
    55,865.83/83,780.74 = 18,417.19/x
  3. Step 3: Cross multiply
    55,865.83x = 83,780.74 × 18,417.19
  4. Step 4: Simplify right side
    55,865.83x = 1,543,005,806.92
  5. Step 5: Solve for x
    x = 1,543,005,806.92/55,865.83
  6. Step 6: Final answer
    x = 27,619.85

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1.5x scale

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.