Home / 89,225.50-133,856.70-30,065.78

Finding the Fourth Proportional to 89,225.50, 133,856.70 and 30,065.78

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Solution

The fourth proportional to 89,225.50, 133,856.70 and 30,065.78 is: 45,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,225.50 : 133,856.70 = 30,065.78 : x
  2. Step 2: Convert to fraction form
    89,225.50/133,856.70 = 30,065.78/x
  3. Step 3: Cross multiply
    89,225.50x = 133,856.70 × 30,065.78
  4. Step 4: Simplify right side
    89,225.50x = 4,024,506,484.74
  5. Step 5: Solve for x
    x = 4,024,506,484.74/89,225.50
  6. Step 6: Final answer
    x = 45,104.89

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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.