Home / 92,780.16-128,036.88-50,338.59

Finding the Fourth Proportional to 92,780.16, 128,036.88 and 50,338.59

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Solution

The fourth proportional to 92,780.16, 128,036.88 and 50,338.59 is: 69,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,780.16 : 128,036.88 = 50,338.59 : x
  2. Step 2: Convert to fraction form
    92,780.16/128,036.88 = 50,338.59/x
  3. Step 3: Cross multiply
    92,780.16x = 128,036.88 × 50,338.59
  4. Step 4: Simplify right side
    92,780.16x = 6,445,196,007.20
  5. Step 5: Solve for x
    x = 6,445,196,007.20/92,780.16
  6. Step 6: Final answer
    x = 69,467.39

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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.