Home / 78,411.12-108,200.94-46,140.60

Finding the Fourth Proportional to 78,411.12, 108,200.94 and 46,140.60

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Solution

The fourth proportional to 78,411.12, 108,200.94 and 46,140.60 is: 63,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,411.12 : 108,200.94 = 46,140.60 : x
  2. Step 2: Convert to fraction form
    78,411.12/108,200.94 = 46,140.60/x
  3. Step 3: Cross multiply
    78,411.12x = 108,200.94 × 46,140.60
  4. Step 4: Simplify right side
    78,411.12x = 4,992,456,292.16
  5. Step 5: Solve for x
    x = 4,992,456,292.16/78,411.12
  6. Step 6: Final answer
    x = 63,670.26

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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.