Home / 56,432.02-84,621.50-20,868.78

Finding the Fourth Proportional to 56,432.02, 84,621.50 and 20,868.78

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Solution

The fourth proportional to 56,432.02, 84,621.50 and 20,868.78 is: 31,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,432.02 : 84,621.50 = 20,868.78 : x
  2. Step 2: Convert to fraction form
    56,432.02/84,621.50 = 20,868.78/x
  3. Step 3: Cross multiply
    56,432.02x = 84,621.50 × 20,868.78
  4. Step 4: Simplify right side
    56,432.02x = 1,765,947,466.77
  5. Step 5: Solve for x
    x = 1,765,947,466.77/56,432.02
  6. Step 6: Final answer
    x = 31,293.36

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1.5x scale

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.