Home / 57,086.02-78,777.46-31,244.45

Finding the Fourth Proportional to 57,086.02, 78,777.46 and 31,244.45

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Solution

The fourth proportional to 57,086.02, 78,777.46 and 31,244.45 is: 43,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,086.02 : 78,777.46 = 31,244.45 : x
  2. Step 2: Convert to fraction form
    57,086.02/78,777.46 = 31,244.45/x
  3. Step 3: Cross multiply
    57,086.02x = 78,777.46 × 31,244.45
  4. Step 4: Simplify right side
    57,086.02x = 2,461,358,055.27
  5. Step 5: Solve for x
    x = 2,461,358,055.27/57,086.02
  6. Step 6: Final answer
    x = 43,116.65

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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.