Home / 77,409.51-106,829.35-43,428.76

Finding the Fourth Proportional to 77,409.51, 106,829.35 and 43,428.76

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Solution

The fourth proportional to 77,409.51, 106,829.35 and 43,428.76 is: 59,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,409.51 : 106,829.35 = 43,428.76 : x
  2. Step 2: Convert to fraction form
    77,409.51/106,829.35 = 43,428.76/x
  3. Step 3: Cross multiply
    77,409.51x = 106,829.35 × 43,428.76
  4. Step 4: Simplify right side
    77,409.51x = 4,639,465,826.46
  5. Step 5: Solve for x
    x = 4,639,465,826.46/77,409.51
  6. Step 6: Final answer
    x = 59,934.06

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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.