Home / 56,818.02-78,409.41-31,325.40

Finding the Fourth Proportional to 56,818.02, 78,409.41 and 31,325.40

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Solution

The fourth proportional to 56,818.02, 78,409.41 and 31,325.40 is: 43,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,818.02 : 78,409.41 = 31,325.40 : x
  2. Step 2: Convert to fraction form
    56,818.02/78,409.41 = 31,325.40/x
  3. Step 3: Cross multiply
    56,818.02x = 78,409.41 × 31,325.40
  4. Step 4: Simplify right side
    56,818.02x = 2,456,205,739.97
  5. Step 5: Solve for x
    x = 2,456,205,739.97/56,818.02
  6. Step 6: Final answer
    x = 43,229.35

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1.5x scale

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.