Home / 90,172.29-124,430.90-49,885.19

Finding the Fourth Proportional to 90,172.29, 124,430.90 and 49,885.19

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Solution

The fourth proportional to 90,172.29, 124,430.90 and 49,885.19 is: 68,837.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,172.29 : 124,430.90 = 49,885.19 : x
  2. Step 2: Convert to fraction form
    90,172.29/124,430.90 = 49,885.19/x
  3. Step 3: Cross multiply
    90,172.29x = 124,430.90 × 49,885.19
  4. Step 4: Simplify right side
    90,172.29x = 6,207,258,216.79
  5. Step 5: Solve for x
    x = 6,207,258,216.79/90,172.29
  6. Step 6: Final answer
    x = 68,837.76

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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.