Home / 90,567.72-124,981.79-50,280.62

Finding the Fourth Proportional to 90,567.72, 124,981.79 and 50,280.62

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Solution

The fourth proportional to 90,567.72, 124,981.79 and 50,280.62 is: 69,386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,567.72 : 124,981.79 = 50,280.62 : x
  2. Step 2: Convert to fraction form
    90,567.72/124,981.79 = 50,280.62/x
  3. Step 3: Cross multiply
    90,567.72x = 124,981.79 × 50,280.62
  4. Step 4: Simplify right side
    90,567.72x = 6,284,161,013.60
  5. Step 5: Solve for x
    x = 6,284,161,013.60/90,567.72
  6. Step 6: Final answer
    x = 69,386.32

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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.