Home / 55,533.70-76,638.54-31,660.12

Finding the Fourth Proportional to 55,533.70, 76,638.54 and 31,660.12

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Solution

The fourth proportional to 55,533.70, 76,638.54 and 31,660.12 is: 43,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,533.70 : 76,638.54 = 31,660.12 : x
  2. Step 2: Convert to fraction form
    55,533.70/76,638.54 = 31,660.12/x
  3. Step 3: Cross multiply
    55,533.70x = 76,638.54 × 31,660.12
  4. Step 4: Simplify right side
    55,533.70x = 2,426,385,373.02
  5. Step 5: Solve for x
    x = 2,426,385,373.02/55,533.70
  6. Step 6: Final answer
    x = 43,692.13

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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.