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Finding the Fourth Proportional to 64,527.95, 89,080.94 and 40,342.34

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Solution

The fourth proportional to 64,527.95, 89,080.94 and 40,342.34 is: 55,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,527.95 : 89,080.94 = 40,342.34 : x
  2. Step 2: Convert to fraction form
    64,527.95/89,080.94 = 40,342.34/x
  3. Step 3: Cross multiply
    64,527.95x = 89,080.94 × 40,342.34
  4. Step 4: Simplify right side
    64,527.95x = 3,593,733,569.00
  5. Step 5: Solve for x
    x = 3,593,733,569.00/64,527.95
  6. Step 6: Final answer
    x = 55,692.67

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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.