Home / 51,041.72-70,421.32-30,892.16

Finding the Fourth Proportional to 51,041.72, 70,421.32 and 30,892.16

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Solution

The fourth proportional to 51,041.72, 70,421.32 and 30,892.16 is: 42,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,041.72 : 70,421.32 = 30,892.16 : x
  2. Step 2: Convert to fraction form
    51,041.72/70,421.32 = 30,892.16/x
  3. Step 3: Cross multiply
    51,041.72x = 70,421.32 × 30,892.16
  4. Step 4: Simplify right side
    51,041.72x = 2,175,466,684.85
  5. Step 5: Solve for x
    x = 2,175,466,684.85/51,041.72
  6. Step 6: Final answer
    x = 42,621.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.