Home / 72,785.02-100,437.91-40,947.77

Finding the Fourth Proportional to 72,785.02, 100,437.91 and 40,947.77

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Solution

The fourth proportional to 72,785.02, 100,437.91 and 40,947.77 is: 56,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,785.02 : 100,437.91 = 40,947.77 : x
  2. Step 2: Convert to fraction form
    72,785.02/100,437.91 = 40,947.77/x
  3. Step 3: Cross multiply
    72,785.02x = 100,437.91 × 40,947.77
  4. Step 4: Simplify right side
    72,785.02x = 4,112,708,437.96
  5. Step 5: Solve for x
    x = 4,112,708,437.96/72,785.02
  6. Step 6: Final answer
    x = 56,504.87

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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.