Home / 43,070.47-64,610.56-19,690.63

Finding the Fourth Proportional to 43,070.47, 64,610.56 and 19,690.63

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Solution

The fourth proportional to 43,070.47, 64,610.56 and 19,690.63 is: 29,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,070.47 : 64,610.56 = 19,690.63 : x
  2. Step 2: Convert to fraction form
    43,070.47/64,610.56 = 19,690.63/x
  3. Step 3: Cross multiply
    43,070.47x = 64,610.56 × 19,690.63
  4. Step 4: Simplify right side
    43,070.47x = 1,272,222,631.05
  5. Step 5: Solve for x
    x = 1,272,222,631.05/43,070.47
  6. Step 6: Final answer
    x = 29,538.16

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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.