Home / 50,953.92-70,312.40-28,290.78

Finding the Fourth Proportional to 50,953.92, 70,312.40 and 28,290.78

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Solution

The fourth proportional to 50,953.92, 70,312.40 and 28,290.78 is: 39,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,953.92 : 70,312.40 = 28,290.78 : x
  2. Step 2: Convert to fraction form
    50,953.92/70,312.40 = 28,290.78/x
  3. Step 3: Cross multiply
    50,953.92x = 70,312.40 × 28,290.78
  4. Step 4: Simplify right side
    50,953.92x = 1,989,192,639.67
  5. Step 5: Solve for x
    x = 1,989,192,639.67/50,953.92
  6. Step 6: Final answer
    x = 39,039.05

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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.