Home / 40,699.79-61,058.46-12,619.28

Finding the Fourth Proportional to 40,699.79, 61,058.46 and 12,619.28

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Solution

The fourth proportional to 40,699.79, 61,058.46 and 12,619.28 is: 18,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,699.79 : 61,058.46 = 12,619.28 : x
  2. Step 2: Convert to fraction form
    40,699.79/61,058.46 = 12,619.28/x
  3. Step 3: Cross multiply
    40,699.79x = 61,058.46 × 12,619.28
  4. Step 4: Simplify right side
    40,699.79x = 770,513,803.11
  5. Step 5: Solve for x
    x = 770,513,803.11/40,699.79
  6. Step 6: Final answer
    x = 18,931.64

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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.