Home / 326,272.16-489,386.32-89,595

Finding the Fourth Proportional to 326,272.16, 489,386.32 and 89,595

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Solution

The fourth proportional to 326,272.16, 489,386.32 and 89,595 is: 134,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,272.16 : 489,386.32 = 89,595 : x
  2. Step 2: Convert to fraction form
    326,272.16/489,386.32 = 89,595/x
  3. Step 3: Cross multiply
    326,272.16x = 489,386.32 × 89,595
  4. Step 4: Simplify right side
    326,272.16x = 43,846,567,340.40
  5. Step 5: Solve for x
    x = 43,846,567,340.40/326,272.16
  6. Step 6: Final answer
    x = 134,386.48

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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.