Home / 77,309.17-106,751.66-58,155.74

Finding the Fourth Proportional to 77,309.17, 106,751.66 and 58,155.74

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Solution

The fourth proportional to 77,309.17, 106,751.66 and 58,155.74 is: 80,303.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,309.17 : 106,751.66 = 58,155.74 : x
  2. Step 2: Convert to fraction form
    77,309.17/106,751.66 = 58,155.74/x
  3. Step 3: Cross multiply
    77,309.17x = 106,751.66 × 58,155.74
  4. Step 4: Simplify right side
    77,309.17x = 6,208,221,359.31
  5. Step 5: Solve for x
    x = 6,208,221,359.31/77,309.17
  6. Step 6: Final answer
    x = 80,303.82

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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.