Home / 97,906.80-135,114.08-55,465.32

Finding the Fourth Proportional to 97,906.80, 135,114.08 and 55,465.32

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Solution

The fourth proportional to 97,906.80, 135,114.08 and 55,465.32 is: 76,543.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,906.80 : 135,114.08 = 55,465.32 : x
  2. Step 2: Convert to fraction form
    97,906.80/135,114.08 = 55,465.32/x
  3. Step 3: Cross multiply
    97,906.80x = 135,114.08 × 55,465.32
  4. Step 4: Simplify right side
    97,906.80x = 7,494,145,683.71
  5. Step 5: Solve for x
    x = 7,494,145,683.71/97,906.80
  6. Step 6: Final answer
    x = 76,543.67

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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.