Home / 88,708.86-133,090.36-53,209.60

Finding the Fourth Proportional to 88,708.86, 133,090.36 and 53,209.60

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Solution

The fourth proportional to 88,708.86, 133,090.36 and 53,209.60 is: 79,830.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,708.86 : 133,090.36 = 53,209.60 : x
  2. Step 2: Convert to fraction form
    88,708.86/133,090.36 = 53,209.60/x
  3. Step 3: Cross multiply
    88,708.86x = 133,090.36 × 53,209.60
  4. Step 4: Simplify right side
    88,708.86x = 7,081,684,353.71
  5. Step 5: Solve for x
    x = 7,081,684,353.71/88,708.86
  6. Step 6: Final answer
    x = 79,830.63

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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.