Home / 90,340.78-124,666.08-49,504.67

Finding the Fourth Proportional to 90,340.78, 124,666.08 and 49,504.67

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Solution

The fourth proportional to 90,340.78, 124,666.08 and 49,504.67 is: 68,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,340.78 : 124,666.08 = 49,504.67 : x
  2. Step 2: Convert to fraction form
    90,340.78/124,666.08 = 49,504.67/x
  3. Step 3: Cross multiply
    90,340.78x = 124,666.08 × 49,504.67
  4. Step 4: Simplify right side
    90,340.78x = 6,171,552,838.93
  5. Step 5: Solve for x
    x = 6,171,552,838.93/90,340.78
  6. Step 6: Final answer
    x = 68,314.14

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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.