Home / 64,692.64-89,289.12-42,000.04

Finding the Fourth Proportional to 64,692.64, 89,289.12 and 42,000.04

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Solution

The fourth proportional to 64,692.64, 89,289.12 and 42,000.04 is: 57,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,692.64 : 89,289.12 = 42,000.04 : x
  2. Step 2: Convert to fraction form
    64,692.64/89,289.12 = 42,000.04/x
  3. Step 3: Cross multiply
    64,692.64x = 89,289.12 × 42,000.04
  4. Step 4: Simplify right side
    64,692.64x = 3,750,146,611.56
  5. Step 5: Solve for x
    x = 3,750,146,611.56/64,692.64
  6. Step 6: Final answer
    x = 57,968.67

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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.