Home / 55,904.40-83,856.60-49,780.80

Finding the Fourth Proportional to 55,904.40, 83,856.60 and 49,780.80

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Solution

The fourth proportional to 55,904.40, 83,856.60 and 49,780.80 is: 74,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.40 : 83,856.60 = 49,780.80 : x
  2. Step 2: Convert to fraction form
    55,904.40/83,856.60 = 49,780.80/x
  3. Step 3: Cross multiply
    55,904.40x = 83,856.60 × 49,780.80
  4. Step 4: Simplify right side
    55,904.40x = 4,174,448,633.28
  5. Step 5: Solve for x
    x = 4,174,448,633.28/55,904.40
  6. Step 6: Final answer
    x = 74,671.20

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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.