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Finding the Fourth Proportional to 55,480.80, 83,221.20 and 46,700.40

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Solution

The fourth proportional to 55,480.80, 83,221.20 and 46,700.40 is: 70,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,480.80 : 83,221.20 = 46,700.40 : x
  2. Step 2: Convert to fraction form
    55,480.80/83,221.20 = 46,700.40/x
  3. Step 3: Cross multiply
    55,480.80x = 83,221.20 × 46,700.40
  4. Step 4: Simplify right side
    55,480.80x = 3,886,463,328.48
  5. Step 5: Solve for x
    x = 3,886,463,328.48/55,480.80
  6. Step 6: Final answer
    x = 70,050.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.