Home / 45,690.86-68,346.75-42,891.50

Finding the Fourth Proportional to 45,690.86, 68,346.75 and 42,891.50

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Solution

The fourth proportional to 45,690.86, 68,346.75 and 42,891.50 is: 64,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,690.86 : 68,346.75 = 42,891.50 : x
  2. Step 2: Convert to fraction form
    45,690.86/68,346.75 = 42,891.50/x
  3. Step 3: Cross multiply
    45,690.86x = 68,346.75 × 42,891.50
  4. Step 4: Simplify right side
    45,690.86x = 2,931,494,627.63
  5. Step 5: Solve for x
    x = 2,931,494,627.63/45,690.86
  6. Step 6: Final answer
    x = 64,159.32

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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.