Home / 56,113.56-77,444.10-39,106.80

Finding the Fourth Proportional to 56,113.56, 77,444.10 and 39,106.80

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Solution

The fourth proportional to 56,113.56, 77,444.10 and 39,106.80 is: 53,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,113.56 : 77,444.10 = 39,106.80 : x
  2. Step 2: Convert to fraction form
    56,113.56/77,444.10 = 39,106.80/x
  3. Step 3: Cross multiply
    56,113.56x = 77,444.10 × 39,106.80
  4. Step 4: Simplify right side
    56,113.56x = 3,028,590,929.88
  5. Step 5: Solve for x
    x = 3,028,590,929.88/56,113.56
  6. Step 6: Final answer
    x = 53,972.53

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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.