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Finding the Fourth Proportional to 56,018.58, 77,305.50 and 30,868.08

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Solution

The fourth proportional to 56,018.58, 77,305.50 and 30,868.08 is: 42,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,018.58 : 77,305.50 = 30,868.08 : x
  2. Step 2: Convert to fraction form
    56,018.58/77,305.50 = 30,868.08/x
  3. Step 3: Cross multiply
    56,018.58x = 77,305.50 × 30,868.08
  4. Step 4: Simplify right side
    56,018.58x = 2,386,272,358.44
  5. Step 5: Solve for x
    x = 2,386,272,358.44/56,018.58
  6. Step 6: Final answer
    x = 42,597.87

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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.