Home / 70,617.60-97,428.44-40,381.38

Finding the Fourth Proportional to 70,617.60, 97,428.44 and 40,381.38

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Solution

The fourth proportional to 70,617.60, 97,428.44 and 40,381.38 is: 55,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,617.60 : 97,428.44 = 40,381.38 : x
  2. Step 2: Convert to fraction form
    70,617.60/97,428.44 = 40,381.38/x
  3. Step 3: Cross multiply
    70,617.60x = 97,428.44 × 40,381.38
  4. Step 4: Simplify right side
    70,617.60x = 3,934,294,858.45
  5. Step 5: Solve for x
    x = 3,934,294,858.45/70,617.60
  6. Step 6: Final answer
    x = 55,712.67

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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.