Home / 84,501.60-126,788.64-40,159.68

Finding the Fourth Proportional to 84,501.60, 126,788.64 and 40,159.68

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Solution

The fourth proportional to 84,501.60, 126,788.64 and 40,159.68 is: 60,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,501.60 : 126,788.64 = 40,159.68 : x
  2. Step 2: Convert to fraction form
    84,501.60/126,788.64 = 40,159.68/x
  3. Step 3: Cross multiply
    84,501.60x = 126,788.64 × 40,159.68
  4. Step 4: Simplify right side
    84,501.60x = 5,091,791,210.04
  5. Step 5: Solve for x
    x = 5,091,791,210.04/84,501.60
  6. Step 6: Final answer
    x = 60,256.74

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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.