Home / 51,280.02-76,904.91-21,697.20

Finding the Fourth Proportional to 51,280.02, 76,904.91 and 21,697.20

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Solution

The fourth proportional to 51,280.02, 76,904.91 and 21,697.20 is: 32,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,280.02 : 76,904.91 = 21,697.20 : x
  2. Step 2: Convert to fraction form
    51,280.02/76,904.91 = 21,697.20/x
  3. Step 3: Cross multiply
    51,280.02x = 76,904.91 × 21,697.20
  4. Step 4: Simplify right side
    51,280.02x = 1,668,621,213.25
  5. Step 5: Solve for x
    x = 1,668,621,213.25/51,280.02
  6. Step 6: Final answer
    x = 32,539.40

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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.