Home / 92,921.68-128,235.18-52,636.60

Finding the Fourth Proportional to 92,921.68, 128,235.18 and 52,636.60

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Solution

The fourth proportional to 92,921.68, 128,235.18 and 52,636.60 is: 72,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,921.68 : 128,235.18 = 52,636.60 : x
  2. Step 2: Convert to fraction form
    92,921.68/128,235.18 = 52,636.60/x
  3. Step 3: Cross multiply
    92,921.68x = 128,235.18 × 52,636.60
  4. Step 4: Simplify right side
    92,921.68x = 6,749,863,875.59
  5. Step 5: Solve for x
    x = 6,749,863,875.59/92,921.68
  6. Step 6: Final answer
    x = 72,640.36

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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.