Home / 42,615.90-63,944.96-31,343.43

Finding the Fourth Proportional to 42,615.90, 63,944.96 and 31,343.43

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Solution

The fourth proportional to 42,615.90, 63,944.96 and 31,343.43 is: 47,030.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615.90 : 63,944.96 = 31,343.43 : x
  2. Step 2: Convert to fraction form
    42,615.90/63,944.96 = 31,343.43/x
  3. Step 3: Cross multiply
    42,615.90x = 63,944.96 × 31,343.43
  4. Step 4: Simplify right side
    42,615.90x = 2,004,254,220.90
  5. Step 5: Solve for x
    x = 2,004,254,220.90/42,615.90
  6. Step 6: Final answer
    x = 47,030.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.