Home / 55,009.63-75,913.54-31,140.92

Finding the Fourth Proportional to 55,009.63, 75,913.54 and 31,140.92

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Solution

The fourth proportional to 55,009.63, 75,913.54 and 31,140.92 is: 42,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,009.63 : 75,913.54 = 31,140.92 : x
  2. Step 2: Convert to fraction form
    55,009.63/75,913.54 = 31,140.92/x
  3. Step 3: Cross multiply
    55,009.63x = 75,913.54 × 31,140.92
  4. Step 4: Simplify right side
    55,009.63x = 2,364,017,587.99
  5. Step 5: Solve for x
    x = 2,364,017,587.99/55,009.63
  6. Step 6: Final answer
    x = 42,974.61

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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.