Home / 77,651.06-107,151.06-45,393.22

Finding the Fourth Proportional to 77,651.06, 107,151.06 and 45,393.22

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Solution

The fourth proportional to 77,651.06, 107,151.06 and 45,393.22 is: 62,638.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,651.06 : 107,151.06 = 45,393.22 : x
  2. Step 2: Convert to fraction form
    77,651.06/107,151.06 = 45,393.22/x
  3. Step 3: Cross multiply
    77,651.06x = 107,151.06 × 45,393.22
  4. Step 4: Simplify right side
    77,651.06x = 4,863,931,639.81
  5. Step 5: Solve for x
    x = 4,863,931,639.81/77,651.06
  6. Step 6: Final answer
    x = 62,638.32

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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.