Home / 72,069.76-99,427.62-48,158.56

Finding the Fourth Proportional to 72,069.76, 99,427.62 and 48,158.56

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Solution

The fourth proportional to 72,069.76, 99,427.62 and 48,158.56 is: 66,439.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,069.76 : 99,427.62 = 48,158.56 : x
  2. Step 2: Convert to fraction form
    72,069.76/99,427.62 = 48,158.56/x
  3. Step 3: Cross multiply
    72,069.76x = 99,427.62 × 48,158.56
  4. Step 4: Simplify right side
    72,069.76x = 4,788,291,003.43
  5. Step 5: Solve for x
    x = 4,788,291,003.43/72,069.76
  6. Step 6: Final answer
    x = 66,439.67

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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.