Home / 55,383.43-76,428.15-31,509.59

Finding the Fourth Proportional to 55,383.43, 76,428.15 and 31,509.59

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Solution

The fourth proportional to 55,383.43, 76,428.15 and 31,509.59 is: 43,482.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,383.43 : 76,428.15 = 31,509.59 : x
  2. Step 2: Convert to fraction form
    55,383.43/76,428.15 = 31,509.59/x
  3. Step 3: Cross multiply
    55,383.43x = 76,428.15 × 31,509.59
  4. Step 4: Simplify right side
    55,383.43x = 2,408,219,670.96
  5. Step 5: Solve for x
    x = 2,408,219,670.96/55,383.43
  6. Step 6: Final answer
    x = 43,482.67

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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.