Home / 55,051.12-75,971.40-29,900.60

Finding the Fourth Proportional to 55,051.12, 75,971.40 and 29,900.60

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Solution

The fourth proportional to 55,051.12, 75,971.40 and 29,900.60 is: 41,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,051.12 : 75,971.40 = 29,900.60 : x
  2. Step 2: Convert to fraction form
    55,051.12/75,971.40 = 29,900.60/x
  3. Step 3: Cross multiply
    55,051.12x = 75,971.40 × 29,900.60
  4. Step 4: Simplify right side
    55,051.12x = 2,271,590,442.84
  5. Step 5: Solve for x
    x = 2,271,590,442.84/55,051.12
  6. Step 6: Final answer
    x = 41,263.29

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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.