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Finding the Fourth Proportional to 63,677.76, 87,838.71 and 39,762.92

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Solution

The fourth proportional to 63,677.76, 87,838.71 and 39,762.92 is: 54,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,677.76 : 87,838.71 = 39,762.92 : x
  2. Step 2: Convert to fraction form
    63,677.76/87,838.71 = 39,762.92/x
  3. Step 3: Cross multiply
    63,677.76x = 87,838.71 × 39,762.92
  4. Step 4: Simplify right side
    63,677.76x = 3,492,723,598.63
  5. Step 5: Solve for x
    x = 3,492,723,598.63/63,677.76
  6. Step 6: Final answer
    x = 54,849.98

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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.