Home / 51,686.40-71,297.28-34,890.24

Finding the Fourth Proportional to 51,686.40, 71,297.28 and 34,890.24

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Solution

The fourth proportional to 51,686.40, 71,297.28 and 34,890.24 is: 48,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,686.40 : 71,297.28 = 34,890.24 : x
  2. Step 2: Convert to fraction form
    51,686.40/71,297.28 = 34,890.24/x
  3. Step 3: Cross multiply
    51,686.40x = 71,297.28 × 34,890.24
  4. Step 4: Simplify right side
    51,686.40x = 2,487,579,210.55
  5. Step 5: Solve for x
    x = 2,487,579,210.55/51,686.40
  6. Step 6: Final answer
    x = 48,128.31

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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.