Home / 77,637.59-107,137.40-43,647.51

Finding the Fourth Proportional to 77,637.59, 107,137.40 and 43,647.51

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Solution

The fourth proportional to 77,637.59, 107,137.40 and 43,647.51 is: 60,232.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,637.59 : 107,137.40 = 43,647.51 : x
  2. Step 2: Convert to fraction form
    77,637.59/107,137.40 = 43,647.51/x
  3. Step 3: Cross multiply
    77,637.59x = 107,137.40 × 43,647.51
  4. Step 4: Simplify right side
    77,637.59x = 4,676,281,166.92
  5. Step 5: Solve for x
    x = 4,676,281,166.92/77,637.59
  6. Step 6: Final answer
    x = 60,232.17

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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.