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Finding the Fourth Proportional to 64,804.88, 89,423.88 and 36,510.32

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Solution

The fourth proportional to 64,804.88, 89,423.88 and 36,510.32 is: 50,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,804.88 : 89,423.88 = 36,510.32 : x
  2. Step 2: Convert to fraction form
    64,804.88/89,423.88 = 36,510.32/x
  3. Step 3: Cross multiply
    64,804.88x = 89,423.88 × 36,510.32
  4. Step 4: Simplify right side
    64,804.88x = 3,264,894,474.44
  5. Step 5: Solve for x
    x = 3,264,894,474.44/64,804.88
  6. Step 6: Final answer
    x = 50,380.38

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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.