Home / 89,298.95-133,979.61-55,979.60

Finding the Fourth Proportional to 89,298.95, 133,979.61 and 55,979.60

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Solution

The fourth proportional to 89,298.95, 133,979.61 and 55,979.60 is: 83,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,298.95 : 133,979.61 = 55,979.60 : x
  2. Step 2: Convert to fraction form
    89,298.95/133,979.61 = 55,979.60/x
  3. Step 3: Cross multiply
    89,298.95x = 133,979.61 × 55,979.60
  4. Step 4: Simplify right side
    89,298.95x = 7,500,124,975.96
  5. Step 5: Solve for x
    x = 7,500,124,975.96/89,298.95
  6. Step 6: Final answer
    x = 83,988.95

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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.