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Finding the Fourth Proportional to 72,677.94, 100,230.84 and 47,159.94

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Solution

The fourth proportional to 72,677.94, 100,230.84 and 47,159.94 is: 65,038.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,677.94 : 100,230.84 = 47,159.94 : x
  2. Step 2: Convert to fraction form
    72,677.94/100,230.84 = 47,159.94/x
  3. Step 3: Cross multiply
    72,677.94x = 100,230.84 × 47,159.94
  4. Step 4: Simplify right side
    72,677.94x = 4,726,880,400.55
  5. Step 5: Solve for x
    x = 4,726,880,400.55/72,677.94
  6. Step 6: Final answer
    x = 65,038.72

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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.