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Finding the Fourth Proportional to 63,710.50, 87,920.49 and 35,421.67

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Solution

The fourth proportional to 63,710.50, 87,920.49 and 35,421.67 is: 48,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,710.50 : 87,920.49 = 35,421.67 : x
  2. Step 2: Convert to fraction form
    63,710.50/87,920.49 = 35,421.67/x
  3. Step 3: Cross multiply
    63,710.50x = 87,920.49 × 35,421.67
  4. Step 4: Simplify right side
    63,710.50x = 3,114,290,583.02
  5. Step 5: Solve for x
    x = 3,114,290,583.02/63,710.50
  6. Step 6: Final answer
    x = 48,881.90

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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.