Home / 72,032.36-99,410.28-40,206.03

Finding the Fourth Proportional to 72,032.36, 99,410.28 and 40,206.03

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Solution

The fourth proportional to 72,032.36, 99,410.28 and 40,206.03 is: 55,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.36 : 99,410.28 = 40,206.03 : x
  2. Step 2: Convert to fraction form
    72,032.36/99,410.28 = 40,206.03/x
  3. Step 3: Cross multiply
    72,032.36x = 99,410.28 × 40,206.03
  4. Step 4: Simplify right side
    72,032.36x = 3,996,892,699.99
  5. Step 5: Solve for x
    x = 3,996,892,699.99/72,032.36
  6. Step 6: Final answer
    x = 55,487.46

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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.