Home / 45,157.47-67,779.95-21,800.31

Finding the Fourth Proportional to 45,157.47, 67,779.95 and 21,800.31

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Solution

The fourth proportional to 45,157.47, 67,779.95 and 21,800.31 is: 32,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,157.47 : 67,779.95 = 21,800.31 : x
  2. Step 2: Convert to fraction form
    45,157.47/67,779.95 = 21,800.31/x
  3. Step 3: Cross multiply
    45,157.47x = 67,779.95 × 21,800.31
  4. Step 4: Simplify right side
    45,157.47x = 1,477,623,812.78
  5. Step 5: Solve for x
    x = 1,477,623,812.78/45,157.47
  6. Step 6: Final answer
    x = 32,721.58

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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.