Home / 72,127.58-99,535.38-40,301.96

Finding the Fourth Proportional to 72,127.58, 99,535.38 and 40,301.96

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Solution

The fourth proportional to 72,127.58, 99,535.38 and 40,301.96 is: 55,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,127.58 : 99,535.38 = 40,301.96 : x
  2. Step 2: Convert to fraction form
    72,127.58/99,535.38 = 40,301.96/x
  3. Step 3: Cross multiply
    72,127.58x = 99,535.38 × 40,301.96
  4. Step 4: Simplify right side
    72,127.58x = 4,011,470,903.34
  5. Step 5: Solve for x
    x = 4,011,470,903.34/72,127.58
  6. Step 6: Final answer
    x = 55,616.32

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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.