Home / 77,950.46-107,570.97-42,140.16

Finding the Fourth Proportional to 77,950.46, 107,570.97 and 42,140.16

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Solution

The fourth proportional to 77,950.46, 107,570.97 and 42,140.16 is: 58,153.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,950.46 : 107,570.97 = 42,140.16 : x
  2. Step 2: Convert to fraction form
    77,950.46/107,570.97 = 42,140.16/x
  3. Step 3: Cross multiply
    77,950.46x = 107,570.97 × 42,140.16
  4. Step 4: Simplify right side
    77,950.46x = 4,533,057,887.16
  5. Step 5: Solve for x
    x = 4,533,057,887.16/77,950.46
  6. Step 6: Final answer
    x = 58,153.06

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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.