Home / 56,532.28-78,014.90-31,039.76

Finding the Fourth Proportional to 56,532.28, 78,014.90 and 31,039.76

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Solution

The fourth proportional to 56,532.28, 78,014.90 and 31,039.76 is: 42,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,532.28 : 78,014.90 = 31,039.76 : x
  2. Step 2: Convert to fraction form
    56,532.28/78,014.90 = 31,039.76/x
  3. Step 3: Cross multiply
    56,532.28x = 78,014.90 × 31,039.76
  4. Step 4: Simplify right side
    56,532.28x = 2,421,563,617.23
  5. Step 5: Solve for x
    x = 2,421,563,617.23/56,532.28
  6. Step 6: Final answer
    x = 42,835.06

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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.