Home / 77,949.93-107,545.41-47,703.72

Finding the Fourth Proportional to 77,949.93, 107,545.41 and 47,703.72

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Solution

The fourth proportional to 77,949.93, 107,545.41 and 47,703.72 is: 65,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,949.93 : 107,545.41 = 47,703.72 : x
  2. Step 2: Convert to fraction form
    77,949.93/107,545.41 = 47,703.72/x
  3. Step 3: Cross multiply
    77,949.93x = 107,545.41 × 47,703.72
  4. Step 4: Simplify right side
    77,949.93x = 5,130,316,125.93
  5. Step 5: Solve for x
    x = 5,130,316,125.93/77,949.93
  6. Step 6: Final answer
    x = 65,815.53

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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.