Home / 94,409.35-130,020.48-78,345.83

Finding the Fourth Proportional to 94,409.35, 130,020.48 and 78,345.83

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Solution

The fourth proportional to 94,409.35, 130,020.48 and 78,345.83 is: 107,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,409.35 : 130,020.48 = 78,345.83 : x
  2. Step 2: Convert to fraction form
    94,409.35/130,020.48 = 78,345.83/x
  3. Step 3: Cross multiply
    94,409.35x = 130,020.48 × 78,345.83
  4. Step 4: Simplify right side
    94,409.35x = 10,186,562,747.65
  5. Step 5: Solve for x
    x = 10,186,562,747.65/94,409.35
  6. Step 6: Final answer
    x = 107,897.82

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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.