Home / 76,532.85-105,609.25-42,538.67

Finding the Fourth Proportional to 76,532.85, 105,609.25 and 42,538.67

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Solution

The fourth proportional to 76,532.85, 105,609.25 and 42,538.67 is: 58,699.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,532.85 : 105,609.25 = 42,538.67 : x
  2. Step 2: Convert to fraction form
    76,532.85/105,609.25 = 42,538.67/x
  3. Step 3: Cross multiply
    76,532.85x = 105,609.25 × 42,538.67
  4. Step 4: Simplify right side
    76,532.85x = 4,492,477,034.70
  5. Step 5: Solve for x
    x = 4,492,477,034.70/76,532.85
  6. Step 6: Final answer
    x = 58,699.98

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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.