Home / 90,095.08-124,330.51-49,810.54

Finding the Fourth Proportional to 90,095.08, 124,330.51 and 49,810.54

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Solution

The fourth proportional to 90,095.08, 124,330.51 and 49,810.54 is: 68,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,095.08 : 124,330.51 = 49,810.54 : x
  2. Step 2: Convert to fraction form
    90,095.08/124,330.51 = 49,810.54/x
  3. Step 3: Cross multiply
    90,095.08x = 124,330.51 × 49,810.54
  4. Step 4: Simplify right side
    90,095.08x = 6,192,968,970.87
  5. Step 5: Solve for x
    x = 6,192,968,970.87/90,095.08
  6. Step 6: Final answer
    x = 68,738.15

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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.