Home / 51,225.10-70,689.81-29,999.86

Finding the Fourth Proportional to 51,225.10, 70,689.81 and 29,999.86

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Solution

The fourth proportional to 51,225.10, 70,689.81 and 29,999.86 is: 41,399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,225.10 : 70,689.81 = 29,999.86 : x
  2. Step 2: Convert to fraction form
    51,225.10/70,689.81 = 29,999.86/x
  3. Step 3: Cross multiply
    51,225.10x = 70,689.81 × 29,999.86
  4. Step 4: Simplify right side
    51,225.10x = 2,120,684,403.43
  5. Step 5: Solve for x
    x = 2,120,684,403.43/51,225.10
  6. Step 6: Final answer
    x = 41,399.32

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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.