Home / 97,477.60-134,581.64-79,615.48

Finding the Fourth Proportional to 97,477.60, 134,581.64 and 79,615.48

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Solution

The fourth proportional to 97,477.60, 134,581.64 and 79,615.48 is: 109,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,477.60 : 134,581.64 = 79,615.48 : x
  2. Step 2: Convert to fraction form
    97,477.60/134,581.64 = 79,615.48/x
  3. Step 3: Cross multiply
    97,477.60x = 134,581.64 × 79,615.48
  4. Step 4: Simplify right side
    97,477.60x = 10,714,781,867.79
  5. Step 5: Solve for x
    x = 10,714,781,867.79/97,477.60
  6. Step 6: Final answer
    x = 109,920.45

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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.