Home / 90,272.66-124,574.75-49,985.55

Finding the Fourth Proportional to 90,272.66, 124,574.75 and 49,985.55

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Solution

The fourth proportional to 90,272.66, 124,574.75 and 49,985.55 is: 68,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,272.66 : 124,574.75 = 49,985.55 : x
  2. Step 2: Convert to fraction form
    90,272.66/124,574.75 = 49,985.55/x
  3. Step 3: Cross multiply
    90,272.66x = 124,574.75 × 49,985.55
  4. Step 4: Simplify right side
    90,272.66x = 6,226,937,394.86
  5. Step 5: Solve for x
    x = 6,226,937,394.86/90,272.66
  6. Step 6: Final answer
    x = 68,979.22

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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.