Home / 50,877.79-70,213.10-30,730.66

Finding the Fourth Proportional to 50,877.79, 70,213.10 and 30,730.66

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Solution

The fourth proportional to 50,877.79, 70,213.10 and 30,730.66 is: 42,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,877.79 : 70,213.10 = 30,730.66 : x
  2. Step 2: Convert to fraction form
    50,877.79/70,213.10 = 30,730.66/x
  3. Step 3: Cross multiply
    50,877.79x = 70,213.10 × 30,730.66
  4. Step 4: Simplify right side
    50,877.79x = 2,157,694,574.46
  5. Step 5: Solve for x
    x = 2,157,694,574.46/50,877.79
  6. Step 6: Final answer
    x = 42,409.36

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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.