Home / 52,018.16-78,037.32-18,742.64

Finding the Fourth Proportional to 52,018.16, 78,037.32 and 18,742.64

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Solution

The fourth proportional to 52,018.16, 78,037.32 and 18,742.64 is: 28,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,018.16 : 78,037.32 = 18,742.64 : x
  2. Step 2: Convert to fraction form
    52,018.16/78,037.32 = 18,742.64/x
  3. Step 3: Cross multiply
    52,018.16x = 78,037.32 × 18,742.64
  4. Step 4: Simplify right side
    52,018.16x = 1,462,625,395.32
  5. Step 5: Solve for x
    x = 1,462,625,395.32/52,018.16
  6. Step 6: Final answer
    x = 28,117.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.