Home / 79,303.32-109,428.47-45,314.01

Finding the Fourth Proportional to 79,303.32, 109,428.47 and 45,314.01

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Solution

The fourth proportional to 79,303.32, 109,428.47 and 45,314.01 is: 62,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,303.32 : 109,428.47 = 45,314.01 : x
  2. Step 2: Convert to fraction form
    79,303.32/109,428.47 = 45,314.01/x
  3. Step 3: Cross multiply
    79,303.32x = 109,428.47 × 45,314.01
  4. Step 4: Simplify right side
    79,303.32x = 4,958,642,557.29
  5. Step 5: Solve for x
    x = 4,958,642,557.29/79,303.32
  6. Step 6: Final answer
    x = 62,527.55

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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.