Home / 89,037.40-133,556.10-42,381.40

Finding the Fourth Proportional to 89,037.40, 133,556.10 and 42,381.40

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Solution

The fourth proportional to 89,037.40, 133,556.10 and 42,381.40 is: 63,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,037.40 : 133,556.10 = 42,381.40 : x
  2. Step 2: Convert to fraction form
    89,037.40/133,556.10 = 42,381.40/x
  3. Step 3: Cross multiply
    89,037.40x = 133,556.10 × 42,381.40
  4. Step 4: Simplify right side
    89,037.40x = 5,660,294,496.54
  5. Step 5: Solve for x
    x = 5,660,294,496.54/89,037.40
  6. Step 6: Final answer
    x = 63,572.10

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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.