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Finding the Fourth Proportional to 56,015.52, 77,303 and 30,866.64

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Solution

The fourth proportional to 56,015.52, 77,303 and 30,866.64 is: 42,596.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,015.52 : 77,303 = 30,866.64 : x
  2. Step 2: Convert to fraction form
    56,015.52/77,303 = 30,866.64/x
  3. Step 3: Cross multiply
    56,015.52x = 77,303 × 30,866.64
  4. Step 4: Simplify right side
    56,015.52x = 2,386,083,871.92
  5. Step 5: Solve for x
    x = 2,386,083,871.92/56,015.52
  6. Step 6: Final answer
    x = 42,596.84

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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.