Home / 72,663.30-100,263.69-40,832.10

Finding the Fourth Proportional to 72,663.30, 100,263.69 and 40,832.10

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Solution

The fourth proportional to 72,663.30, 100,263.69 and 40,832.10 is: 56,341.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,663.30 : 100,263.69 = 40,832.10 : x
  2. Step 2: Convert to fraction form
    72,663.30/100,263.69 = 40,832.10/x
  3. Step 3: Cross multiply
    72,663.30x = 100,263.69 × 40,832.10
  4. Step 4: Simplify right side
    72,663.30x = 4,093,977,016.45
  5. Step 5: Solve for x
    x = 4,093,977,016.45/72,663.30
  6. Step 6: Final answer
    x = 56,341.74

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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.