Home / 45,415.88-68,130.24-15,829.40

Finding the Fourth Proportional to 45,415.88, 68,130.24 and 15,829.40

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Solution

The fourth proportional to 45,415.88, 68,130.24 and 15,829.40 is: 23,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,415.88 : 68,130.24 = 15,829.40 : x
  2. Step 2: Convert to fraction form
    45,415.88/68,130.24 = 15,829.40/x
  3. Step 3: Cross multiply
    45,415.88x = 68,130.24 × 15,829.40
  4. Step 4: Simplify right side
    45,415.88x = 1,078,460,821.06
  5. Step 5: Solve for x
    x = 1,078,460,821.06/45,415.88
  6. Step 6: Final answer
    x = 23,746.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.