Home / 77,656.80-107,161.74-45,835.68

Finding the Fourth Proportional to 77,656.80, 107,161.74 and 45,835.68

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Solution

The fourth proportional to 77,656.80, 107,161.74 and 45,835.68 is: 63,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,656.80 : 107,161.74 = 45,835.68 : x
  2. Step 2: Convert to fraction form
    77,656.80/107,161.74 = 45,835.68/x
  3. Step 3: Cross multiply
    77,656.80x = 107,161.74 × 45,835.68
  4. Step 4: Simplify right side
    77,656.80x = 4,911,831,222.88
  5. Step 5: Solve for x
    x = 4,911,831,222.88/77,656.80
  6. Step 6: Final answer
    x = 63,250.50

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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.