Home / 43,130.72-64,695.36-19,425.08

Finding the Fourth Proportional to 43,130.72, 64,695.36 and 19,425.08

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Solution

The fourth proportional to 43,130.72, 64,695.36 and 19,425.08 is: 29,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,130.72 : 64,695.36 = 19,425.08 : x
  2. Step 2: Convert to fraction form
    43,130.72/64,695.36 = 19,425.08/x
  3. Step 3: Cross multiply
    43,130.72x = 64,695.36 × 19,425.08
  4. Step 4: Simplify right side
    43,130.72x = 1,256,712,543.63
  5. Step 5: Solve for x
    x = 1,256,712,543.63/43,130.72
  6. Step 6: Final answer
    x = 29,137.30

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Similar ratio
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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.