Home / 90,688.36-136,032.86-27,509.03

Finding the Fourth Proportional to 90,688.36, 136,032.86 and 27,509.03

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Solution

The fourth proportional to 90,688.36, 136,032.86 and 27,509.03 is: 41,263.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,688.36 : 136,032.86 = 27,509.03 : x
  2. Step 2: Convert to fraction form
    90,688.36/136,032.86 = 27,509.03/x
  3. Step 3: Cross multiply
    90,688.36x = 136,032.86 × 27,509.03
  4. Step 4: Simplify right side
    90,688.36x = 3,742,131,848.09
  5. Step 5: Solve for x
    x = 3,742,131,848.09/90,688.36
  6. Step 6: Final answer
    x = 41,263.64

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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.