Home / 55,380.29-76,426.53-31,510.40

Finding the Fourth Proportional to 55,380.29, 76,426.53 and 31,510.40

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Solution

The fourth proportional to 55,380.29, 76,426.53 and 31,510.40 is: 43,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,380.29 : 76,426.53 = 31,510.40 : x
  2. Step 2: Convert to fraction form
    55,380.29/76,426.53 = 31,510.40/x
  3. Step 3: Cross multiply
    55,380.29x = 76,426.53 × 31,510.40
  4. Step 4: Simplify right side
    55,380.29x = 2,408,230,530.91
  5. Step 5: Solve for x
    x = 2,408,230,530.91/55,380.29
  6. Step 6: Final answer
    x = 43,485.34

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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.