Home / 77,628.40-107,092.02-45,782.44

Finding the Fourth Proportional to 77,628.40, 107,092.02 and 45,782.44

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Solution

The fourth proportional to 77,628.40, 107,092.02 and 45,782.44 is: 63,159.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,628.40 : 107,092.02 = 45,782.44 : x
  2. Step 2: Convert to fraction form
    77,628.40/107,092.02 = 45,782.44/x
  3. Step 3: Cross multiply
    77,628.40x = 107,092.02 × 45,782.44
  4. Step 4: Simplify right side
    77,628.40x = 4,902,933,980.13
  5. Step 5: Solve for x
    x = 4,902,933,980.13/77,628.40
  6. Step 6: Final answer
    x = 63,159.02

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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.