Home / 55,988.80-77,277.60-39,246.40

Finding the Fourth Proportional to 55,988.80, 77,277.60 and 39,246.40

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Solution

The fourth proportional to 55,988.80, 77,277.60 and 39,246.40 is: 54,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,988.80 : 77,277.60 = 39,246.40 : x
  2. Step 2: Convert to fraction form
    55,988.80/77,277.60 = 39,246.40/x
  3. Step 3: Cross multiply
    55,988.80x = 77,277.60 × 39,246.40
  4. Step 4: Simplify right side
    55,988.80x = 3,032,867,600.64
  5. Step 5: Solve for x
    x = 3,032,867,600.64/55,988.80
  6. Step 6: Final answer
    x = 54,169.18

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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.