Home / 56,036.80-77,330.40-30,886.24

Finding the Fourth Proportional to 56,036.80, 77,330.40 and 30,886.24

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Solution

The fourth proportional to 56,036.80, 77,330.40 and 30,886.24 is: 42,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,036.80 : 77,330.40 = 30,886.24 : x
  2. Step 2: Convert to fraction form
    56,036.80/77,330.40 = 30,886.24/x
  3. Step 3: Cross multiply
    56,036.80x = 77,330.40 × 30,886.24
  4. Step 4: Simplify right side
    56,036.80x = 2,388,445,293.70
  5. Step 5: Solve for x
    x = 2,388,445,293.70/56,036.80
  6. Step 6: Final answer
    x = 42,622.80

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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.