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Finding the Fourth Proportional to 52,646.64, 72,650.16 and 28,774.32

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Solution

The fourth proportional to 52,646.64, 72,650.16 and 28,774.32 is: 39,707.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,646.64 : 72,650.16 = 28,774.32 : x
  2. Step 2: Convert to fraction form
    52,646.64/72,650.16 = 28,774.32/x
  3. Step 3: Cross multiply
    52,646.64x = 72,650.16 × 28,774.32
  4. Step 4: Simplify right side
    52,646.64x = 2,090,458,951.89
  5. Step 5: Solve for x
    x = 2,090,458,951.89/52,646.64
  6. Step 6: Final answer
    x = 39,707.36

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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.