Home / 77,950.47-107,571.24-42,140.16

Finding the Fourth Proportional to 77,950.47, 107,571.24 and 42,140.16

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Solution

The fourth proportional to 77,950.47, 107,571.24 and 42,140.16 is: 58,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,950.47 : 107,571.24 = 42,140.16 : x
  2. Step 2: Convert to fraction form
    77,950.47/107,571.24 = 42,140.16/x
  3. Step 3: Cross multiply
    77,950.47x = 107,571.24 × 42,140.16
  4. Step 4: Simplify right side
    77,950.47x = 4,533,069,265.00
  5. Step 5: Solve for x
    x = 4,533,069,265.00/77,950.47
  6. Step 6: Final answer
    x = 58,153.20

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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.