Home / 45,949.19-63,415.76-28,040.40

Finding the Fourth Proportional to 45,949.19, 63,415.76 and 28,040.40

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Solution

The fourth proportional to 45,949.19, 63,415.76 and 28,040.40 is: 38,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,949.19 : 63,415.76 = 28,040.40 : x
  2. Step 2: Convert to fraction form
    45,949.19/63,415.76 = 28,040.40/x
  3. Step 3: Cross multiply
    45,949.19x = 63,415.76 × 28,040.40
  4. Step 4: Simplify right side
    45,949.19x = 1,778,203,136.50
  5. Step 5: Solve for x
    x = 1,778,203,136.50/45,949.19
  6. Step 6: Final answer
    x = 38,699.34

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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.