Home / 77,275.88-106,624.32-45,433.16

Finding the Fourth Proportional to 77,275.88, 106,624.32 and 45,433.16

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Solution

The fourth proportional to 77,275.88, 106,624.32 and 45,433.16 is: 62,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,275.88 : 106,624.32 = 45,433.16 : x
  2. Step 2: Convert to fraction form
    77,275.88/106,624.32 = 45,433.16/x
  3. Step 3: Cross multiply
    77,275.88x = 106,624.32 × 45,433.16
  4. Step 4: Simplify right side
    77,275.88x = 4,844,279,790.45
  5. Step 5: Solve for x
    x = 4,844,279,790.45/77,275.88
  6. Step 6: Final answer
    x = 62,688.12

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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.