Home / 81,512.37-112,485.65-45,702.27

Finding the Fourth Proportional to 81,512.37, 112,485.65 and 45,702.27

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Solution

The fourth proportional to 81,512.37, 112,485.65 and 45,702.27 is: 63,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.37 : 112,485.65 = 45,702.27 : x
  2. Step 2: Convert to fraction form
    81,512.37/112,485.65 = 45,702.27/x
  3. Step 3: Cross multiply
    81,512.37x = 112,485.65 × 45,702.27
  4. Step 4: Simplify right side
    81,512.37x = 5,140,849,318.91
  5. Step 5: Solve for x
    x = 5,140,849,318.91/81,512.37
  6. Step 6: Final answer
    x = 63,068.33

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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.