Home / 55,346.24-76,378.20-31,471.50

Finding the Fourth Proportional to 55,346.24, 76,378.20 and 31,471.50

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Solution

The fourth proportional to 55,346.24, 76,378.20 and 31,471.50 is: 43,430.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,346.24 : 76,378.20 = 31,471.50 : x
  2. Step 2: Convert to fraction form
    55,346.24/76,378.20 = 31,471.50/x
  3. Step 3: Cross multiply
    55,346.24x = 76,378.20 × 31,471.50
  4. Step 4: Simplify right side
    55,346.24x = 2,403,736,521.30
  5. Step 5: Solve for x
    x = 2,403,736,521.30/55,346.24
  6. Step 6: Final answer
    x = 43,430.89

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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.