Home / 42,720.02-64,043.54-30,200.66

Finding the Fourth Proportional to 42,720.02, 64,043.54 and 30,200.66

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Solution

The fourth proportional to 42,720.02, 64,043.54 and 30,200.66 is: 45,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,720.02 : 64,043.54 = 30,200.66 : x
  2. Step 2: Convert to fraction form
    42,720.02/64,043.54 = 30,200.66/x
  3. Step 3: Cross multiply
    42,720.02x = 64,043.54 × 30,200.66
  4. Step 4: Simplify right side
    42,720.02x = 1,934,157,176.74
  5. Step 5: Solve for x
    x = 1,934,157,176.74/42,720.02
  6. Step 6: Final answer
    x = 45,275.19

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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.