Home / 42,689.54-64,079.40-23,985.56

Finding the Fourth Proportional to 42,689.54, 64,079.40 and 23,985.56

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Solution

The fourth proportional to 42,689.54, 64,079.40 and 23,985.56 is: 36,003.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,689.54 : 64,079.40 = 23,985.56 : x
  2. Step 2: Convert to fraction form
    42,689.54/64,079.40 = 23,985.56/x
  3. Step 3: Cross multiply
    42,689.54x = 64,079.40 × 23,985.56
  4. Step 4: Simplify right side
    42,689.54x = 1,536,980,293.46
  5. Step 5: Solve for x
    x = 1,536,980,293.46/42,689.54
  6. Step 6: Final answer
    x = 36,003.67

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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.