Home / 77,977.17-107,606.07-43,985.15

Finding the Fourth Proportional to 77,977.17, 107,606.07 and 43,985.15

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Solution

The fourth proportional to 77,977.17, 107,606.07 and 43,985.15 is: 60,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,977.17 : 107,606.07 = 43,985.15 : x
  2. Step 2: Convert to fraction form
    77,977.17/107,606.07 = 43,985.15/x
  3. Step 3: Cross multiply
    77,977.17x = 107,606.07 × 43,985.15
  4. Step 4: Simplify right side
    77,977.17x = 4,733,069,129.86
  5. Step 5: Solve for x
    x = 4,733,069,129.86/77,977.17
  6. Step 6: Final answer
    x = 60,698.14

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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.