Home / 72,649.36-100,252.38-48,772.72

Finding the Fourth Proportional to 72,649.36, 100,252.38 and 48,772.72

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Solution

The fourth proportional to 72,649.36, 100,252.38 and 48,772.72 is: 67,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,649.36 : 100,252.38 = 48,772.72 : x
  2. Step 2: Convert to fraction form
    72,649.36/100,252.38 = 48,772.72/x
  3. Step 3: Cross multiply
    72,649.36x = 100,252.38 × 48,772.72
  4. Step 4: Simplify right side
    72,649.36x = 4,889,581,259.07
  5. Step 5: Solve for x
    x = 4,889,581,259.07/72,649.36
  6. Step 6: Final answer
    x = 67,303.84

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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.