Home / 51,880.95-71,592.80-30,662.19

Finding the Fourth Proportional to 51,880.95, 71,592.80 and 30,662.19

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Solution

The fourth proportional to 51,880.95, 71,592.80 and 30,662.19 is: 42,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,880.95 : 71,592.80 = 30,662.19 : x
  2. Step 2: Convert to fraction form
    51,880.95/71,592.80 = 30,662.19/x
  3. Step 3: Cross multiply
    51,880.95x = 71,592.80 × 30,662.19
  4. Step 4: Simplify right side
    51,880.95x = 2,195,191,882.92
  5. Step 5: Solve for x
    x = 2,195,191,882.92/51,880.95
  6. Step 6: Final answer
    x = 42,312.10

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1.5x scale

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.