Home / 72,984.02-100,631.66-51,477.30

Finding the Fourth Proportional to 72,984.02, 100,631.66 and 51,477.30

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Solution

The fourth proportional to 72,984.02, 100,631.66 and 51,477.30 is: 70,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,984.02 : 100,631.66 = 51,477.30 : x
  2. Step 2: Convert to fraction form
    72,984.02/100,631.66 = 51,477.30/x
  3. Step 3: Cross multiply
    72,984.02x = 100,631.66 × 51,477.30
  4. Step 4: Simplify right side
    72,984.02x = 5,180,246,151.32
  5. Step 5: Solve for x
    x = 5,180,246,151.32/72,984.02
  6. Step 6: Final answer
    x = 70,977.81

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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.