Home / 56,186.90-77,538.03-30,693.45

Finding the Fourth Proportional to 56,186.90, 77,538.03 and 30,693.45

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Solution

The fourth proportional to 56,186.90, 77,538.03 and 30,693.45 is: 42,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,186.90 : 77,538.03 = 30,693.45 : x
  2. Step 2: Convert to fraction form
    56,186.90/77,538.03 = 30,693.45/x
  3. Step 3: Cross multiply
    56,186.90x = 77,538.03 × 30,693.45
  4. Step 4: Simplify right side
    56,186.90x = 2,379,909,646.90
  5. Step 5: Solve for x
    x = 2,379,909,646.90/56,186.90
  6. Step 6: Final answer
    x = 42,357.02

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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.