Home / 77,217.82-106,570.02-45,389.68

Finding the Fourth Proportional to 77,217.82, 106,570.02 and 45,389.68

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Solution

The fourth proportional to 77,217.82, 106,570.02 and 45,389.68 is: 62,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,217.82 : 106,570.02 = 45,389.68 : x
  2. Step 2: Convert to fraction form
    77,217.82/106,570.02 = 45,389.68/x
  3. Step 3: Cross multiply
    77,217.82x = 106,570.02 × 45,389.68
  4. Step 4: Simplify right side
    77,217.82x = 4,837,179,105.39
  5. Step 5: Solve for x
    x = 4,837,179,105.39/77,217.82
  6. Step 6: Final answer
    x = 62,643.30

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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.