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Finding the Fourth Proportional to 52,693.60, 72,717.12 and 28,820.48

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Solution

The fourth proportional to 52,693.60, 72,717.12 and 28,820.48 is: 39,772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,693.60 : 72,717.12 = 28,820.48 : x
  2. Step 2: Convert to fraction form
    52,693.60/72,717.12 = 28,820.48/x
  3. Step 3: Cross multiply
    52,693.60x = 72,717.12 × 28,820.48
  4. Step 4: Simplify right side
    52,693.60x = 2,095,742,302.62
  5. Step 5: Solve for x
    x = 2,095,742,302.62/52,693.60
  6. Step 6: Final answer
    x = 39,772.24

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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.