Home / 72,028.84-99,397.19-39,762.77

Finding the Fourth Proportional to 72,028.84, 99,397.19 and 39,762.77

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Solution

The fourth proportional to 72,028.84, 99,397.19 and 39,762.77 is: 54,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,028.84 : 99,397.19 = 39,762.77 : x
  2. Step 2: Convert to fraction form
    72,028.84/99,397.19 = 39,762.77/x
  3. Step 3: Cross multiply
    72,028.84x = 99,397.19 × 39,762.77
  4. Step 4: Simplify right side
    72,028.84x = 3,952,307,604.62
  5. Step 5: Solve for x
    x = 3,952,307,604.62/72,028.84
  6. Step 6: Final answer
    x = 54,871.18

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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.