Home / 57,216.27-78,957.53-31,374.74

Finding the Fourth Proportional to 57,216.27, 78,957.53 and 31,374.74

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Solution

The fourth proportional to 57,216.27, 78,957.53 and 31,374.74 is: 43,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.27 : 78,957.53 = 31,374.74 : x
  2. Step 2: Convert to fraction form
    57,216.27/78,957.53 = 31,374.74/x
  3. Step 3: Cross multiply
    57,216.27x = 78,957.53 × 31,374.74
  4. Step 4: Simplify right side
    57,216.27x = 2,477,272,309.45
  5. Step 5: Solve for x
    x = 2,477,272,309.45/57,216.27
  6. Step 6: Final answer
    x = 43,296.64

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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.