Home / 55,023.90-75,933.21-31,155.18

Finding the Fourth Proportional to 55,023.90, 75,933.21 and 31,155.18

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Solution

The fourth proportional to 55,023.90, 75,933.21 and 31,155.18 is: 42,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,023.90 : 75,933.21 = 31,155.18 : x
  2. Step 2: Convert to fraction form
    55,023.90/75,933.21 = 31,155.18/x
  3. Step 3: Cross multiply
    55,023.90x = 75,933.21 × 31,155.18
  4. Step 4: Simplify right side
    55,023.90x = 2,365,712,825.53
  5. Step 5: Solve for x
    x = 2,365,712,825.53/55,023.90
  6. Step 6: Final answer
    x = 42,994.28

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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.