Home / 98,340.09-135,707.88-55,316.32

Finding the Fourth Proportional to 98,340.09, 135,707.88 and 55,316.32

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Solution

The fourth proportional to 98,340.09, 135,707.88 and 55,316.32 is: 76,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,340.09 : 135,707.88 = 55,316.32 : x
  2. Step 2: Convert to fraction form
    98,340.09/135,707.88 = 55,316.32/x
  3. Step 3: Cross multiply
    98,340.09x = 135,707.88 × 55,316.32
  4. Step 4: Simplify right side
    98,340.09x = 7,506,860,516.60
  5. Step 5: Solve for x
    x = 7,506,860,516.60/98,340.09
  6. Step 6: Final answer
    x = 76,335.71

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1.5x scale

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.