Home / 85,365.36-128,015.24-58,990.14

Finding the Fourth Proportional to 85,365.36, 128,015.24 and 58,990.14

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Solution

The fourth proportional to 85,365.36, 128,015.24 and 58,990.14 is: 88,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,365.36 : 128,015.24 = 58,990.14 : x
  2. Step 2: Convert to fraction form
    85,365.36/128,015.24 = 58,990.14/x
  3. Step 3: Cross multiply
    85,365.36x = 128,015.24 × 58,990.14
  4. Step 4: Simplify right side
    85,365.36x = 7,551,636,634.78
  5. Step 5: Solve for x
    x = 7,551,636,634.78/85,365.36
  6. Step 6: Final answer
    x = 88,462.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.