Home / 88,613.06-122,216.91-56,784.92

Finding the Fourth Proportional to 88,613.06, 122,216.91 and 56,784.92

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Solution

The fourth proportional to 88,613.06, 122,216.91 and 56,784.92 is: 78,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,613.06 : 122,216.91 = 56,784.92 : x
  2. Step 2: Convert to fraction form
    88,613.06/122,216.91 = 56,784.92/x
  3. Step 3: Cross multiply
    88,613.06x = 122,216.91 × 56,784.92
  4. Step 4: Simplify right side
    88,613.06x = 6,940,076,845.91
  5. Step 5: Solve for x
    x = 6,940,076,845.91/88,613.06
  6. Step 6: Final answer
    x = 78,318.90

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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.