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Finding the Fourth Proportional to 64,283.09, 88,700.11 and 40,392.84

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Solution

The fourth proportional to 64,283.09, 88,700.11 and 40,392.84 is: 55,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,283.09 : 88,700.11 = 40,392.84 : x
  2. Step 2: Convert to fraction form
    64,283.09/88,700.11 = 40,392.84/x
  3. Step 3: Cross multiply
    64,283.09x = 88,700.11 × 40,392.84
  4. Step 4: Simplify right side
    64,283.09x = 3,582,849,810.07
  5. Step 5: Solve for x
    x = 3,582,849,810.07/64,283.09
  6. Step 6: Final answer
    x = 55,735.50

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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.