Home / 89,117.20-133,675.80-57,624.40

Finding the Fourth Proportional to 89,117.20, 133,675.80 and 57,624.40

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Solution

The fourth proportional to 89,117.20, 133,675.80 and 57,624.40 is: 86,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,117.20 : 133,675.80 = 57,624.40 : x
  2. Step 2: Convert to fraction form
    89,117.20/133,675.80 = 57,624.40/x
  3. Step 3: Cross multiply
    89,117.20x = 133,675.80 × 57,624.40
  4. Step 4: Simplify right side
    89,117.20x = 7,702,987,769.52
  5. Step 5: Solve for x
    x = 7,702,987,769.52/89,117.20
  6. Step 6: Final answer
    x = 86,436.60

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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.