Home / 72,544.20-100,108.02-42,331.20

Finding the Fourth Proportional to 72,544.20, 100,108.02 and 42,331.20

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Solution

The fourth proportional to 72,544.20, 100,108.02 and 42,331.20 is: 58,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,544.20 : 100,108.02 = 42,331.20 : x
  2. Step 2: Convert to fraction form
    72,544.20/100,108.02 = 42,331.20/x
  3. Step 3: Cross multiply
    72,544.20x = 100,108.02 × 42,331.20
  4. Step 4: Simplify right side
    72,544.20x = 4,237,692,616.22
  5. Step 5: Solve for x
    x = 4,237,692,616.22/72,544.20
  6. Step 6: Final answer
    x = 58,415.32

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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.