Home / 42,648.14-63,939.18-28,585.64

Finding the Fourth Proportional to 42,648.14, 63,939.18 and 28,585.64

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Solution

The fourth proportional to 42,648.14, 63,939.18 and 28,585.64 is: 42,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,648.14 : 63,939.18 = 28,585.64 : x
  2. Step 2: Convert to fraction form
    42,648.14/63,939.18 = 28,585.64/x
  3. Step 3: Cross multiply
    42,648.14x = 63,939.18 × 28,585.64
  4. Step 4: Simplify right side
    42,648.14x = 1,827,742,381.38
  5. Step 5: Solve for x
    x = 1,827,742,381.38/42,648.14
  6. Step 6: Final answer
    x = 42,856.32

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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.