Home / 92,931.38-128,251.64-52,645.47

Finding the Fourth Proportional to 92,931.38, 128,251.64 and 52,645.47

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Solution

The fourth proportional to 92,931.38, 128,251.64 and 52,645.47 is: 72,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,931.38 : 128,251.64 = 52,645.47 : x
  2. Step 2: Convert to fraction form
    92,931.38/128,251.64 = 52,645.47/x
  3. Step 3: Cross multiply
    92,931.38x = 128,251.64 × 52,645.47
  4. Step 4: Simplify right side
    92,931.38x = 6,751,867,866.07
  5. Step 5: Solve for x
    x = 6,751,867,866.07/92,931.38
  6. Step 6: Final answer
    x = 72,654.34

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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.