Home / 77,306.09-115,900.05-53,545.35

Finding the Fourth Proportional to 77,306.09, 115,900.05 and 53,545.35

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Solution

The fourth proportional to 77,306.09, 115,900.05 and 53,545.35 is: 80,277.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,306.09 : 115,900.05 = 53,545.35 : x
  2. Step 2: Convert to fraction form
    77,306.09/115,900.05 = 53,545.35/x
  3. Step 3: Cross multiply
    77,306.09x = 115,900.05 × 53,545.35
  4. Step 4: Simplify right side
    77,306.09x = 6,205,908,742.27
  5. Step 5: Solve for x
    x = 6,205,908,742.27/77,306.09
  6. Step 6: Final answer
    x = 80,277.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.