Home / 77,077.12-106,364.19-43,085.67

Finding the Fourth Proportional to 77,077.12, 106,364.19 and 43,085.67

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Solution

The fourth proportional to 77,077.12, 106,364.19 and 43,085.67 is: 59,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,077.12 : 106,364.19 = 43,085.67 : x
  2. Step 2: Convert to fraction form
    77,077.12/106,364.19 = 43,085.67/x
  3. Step 3: Cross multiply
    77,077.12x = 106,364.19 × 43,085.67
  4. Step 4: Simplify right side
    77,077.12x = 4,582,772,390.16
  5. Step 5: Solve for x
    x = 4,582,772,390.16/77,077.12
  6. Step 6: Final answer
    x = 59,456.97

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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.