Home / 77,307.39-106,682.86-43,315.76

Finding the Fourth Proportional to 77,307.39, 106,682.86 and 43,315.76

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Solution

The fourth proportional to 77,307.39, 106,682.86 and 43,315.76 is: 59,775.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,307.39 : 106,682.86 = 43,315.76 : x
  2. Step 2: Convert to fraction form
    77,307.39/106,682.86 = 43,315.76/x
  3. Step 3: Cross multiply
    77,307.39x = 106,682.86 × 43,315.76
  4. Step 4: Simplify right side
    77,307.39x = 4,621,049,419.81
  5. Step 5: Solve for x
    x = 4,621,049,419.81/77,307.39
  6. Step 6: Final answer
    x = 59,775.00

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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.