Home / 77,973.17-107,619.65-49,274.57

Finding the Fourth Proportional to 77,973.17, 107,619.65 and 49,274.57

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Solution

The fourth proportional to 77,973.17, 107,619.65 and 49,274.57 is: 68,009.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,973.17 : 107,619.65 = 49,274.57 : x
  2. Step 2: Convert to fraction form
    77,973.17/107,619.65 = 49,274.57/x
  3. Step 3: Cross multiply
    77,973.17x = 107,619.65 × 49,274.57
  4. Step 4: Simplify right side
    77,973.17x = 5,302,911,977.30
  5. Step 5: Solve for x
    x = 5,302,911,977.30/77,973.17
  6. Step 6: Final answer
    x = 68,009.44

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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.