Home / 56,660.02-78,189.17-31,166.36

Finding the Fourth Proportional to 56,660.02, 78,189.17 and 31,166.36

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Solution

The fourth proportional to 56,660.02, 78,189.17 and 31,166.36 is: 43,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,660.02 : 78,189.17 = 31,166.36 : x
  2. Step 2: Convert to fraction form
    56,660.02/78,189.17 = 31,166.36/x
  3. Step 3: Cross multiply
    56,660.02x = 78,189.17 × 31,166.36
  4. Step 4: Simplify right side
    56,660.02x = 2,436,871,820.32
  5. Step 5: Solve for x
    x = 2,436,871,820.32/56,660.02
  6. Step 6: Final answer
    x = 43,008.67

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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.