Home / 92,913.39-128,218.35-54,148.80

Finding the Fourth Proportional to 92,913.39, 128,218.35 and 54,148.80

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Solution

The fourth proportional to 92,913.39, 128,218.35 and 54,148.80 is: 74,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,913.39 : 128,218.35 = 54,148.80 : x
  2. Step 2: Convert to fraction form
    92,913.39/128,218.35 = 54,148.80/x
  3. Step 3: Cross multiply
    92,913.39x = 128,218.35 × 54,148.80
  4. Step 4: Simplify right side
    92,913.39x = 6,942,869,790.48
  5. Step 5: Solve for x
    x = 6,942,869,790.48/92,913.39
  6. Step 6: Final answer
    x = 74,724.10

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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.