Home / 57,061.53-78,746.58-31,221.63

Finding the Fourth Proportional to 57,061.53, 78,746.58 and 31,221.63

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Solution

The fourth proportional to 57,061.53, 78,746.58 and 31,221.63 is: 43,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,061.53 : 78,746.58 = 31,221.63 : x
  2. Step 2: Convert to fraction form
    57,061.53/78,746.58 = 31,221.63/x
  3. Step 3: Cross multiply
    57,061.53x = 78,746.58 × 31,221.63
  4. Step 4: Simplify right side
    57,061.53x = 2,458,596,584.53
  5. Step 5: Solve for x
    x = 2,458,596,584.53/57,061.53
  6. Step 6: Final answer
    x = 43,086.76

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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.