Home / 42,585.45-63,905.51-28,561.32

Finding the Fourth Proportional to 42,585.45, 63,905.51 and 28,561.32

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Solution

The fourth proportional to 42,585.45, 63,905.51 and 28,561.32 is: 42,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585.45 : 63,905.51 = 28,561.32 : x
  2. Step 2: Convert to fraction form
    42,585.45/63,905.51 = 28,561.32/x
  3. Step 3: Cross multiply
    42,585.45x = 63,905.51 × 28,561.32
  4. Step 4: Simplify right side
    42,585.45x = 1,825,225,258.54
  5. Step 5: Solve for x
    x = 1,825,225,258.54/42,585.45
  6. Step 6: Final answer
    x = 42,860.31

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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.