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Finding the Fourth Proportional to 55,051.60, 75,971.08 and 29,900.88

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Solution

The fourth proportional to 55,051.60, 75,971.08 and 29,900.88 is: 41,263.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,051.60 : 75,971.08 = 29,900.88 : x
  2. Step 2: Convert to fraction form
    55,051.60/75,971.08 = 29,900.88/x
  3. Step 3: Cross multiply
    55,051.60x = 75,971.08 × 29,900.88
  4. Step 4: Simplify right side
    55,051.60x = 2,271,602,146.55
  5. Step 5: Solve for x
    x = 2,271,602,146.55/55,051.60
  6. Step 6: Final answer
    x = 41,263.14

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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.