Home / 80,938.17-111,669.89-46,939.77

Finding the Fourth Proportional to 80,938.17, 111,669.89 and 46,939.77

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Solution

The fourth proportional to 80,938.17, 111,669.89 and 46,939.77 is: 64,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,938.17 : 111,669.89 = 46,939.77 : x
  2. Step 2: Convert to fraction form
    80,938.17/111,669.89 = 46,939.77/x
  3. Step 3: Cross multiply
    80,938.17x = 111,669.89 × 46,939.77
  4. Step 4: Simplify right side
    80,938.17x = 5,241,758,717.83
  5. Step 5: Solve for x
    x = 5,241,758,717.83/80,938.17
  6. Step 6: Final answer
    x = 64,762.51

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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.