Home / 77,020.86-106,278.27-43,025.15

Finding the Fourth Proportional to 77,020.86, 106,278.27 and 43,025.15

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Solution

The fourth proportional to 77,020.86, 106,278.27 and 43,025.15 is: 59,368.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,020.86 : 106,278.27 = 43,025.15 : x
  2. Step 2: Convert to fraction form
    77,020.86/106,278.27 = 43,025.15/x
  3. Step 3: Cross multiply
    77,020.86x = 106,278.27 × 43,025.15
  4. Step 4: Simplify right side
    77,020.86x = 4,572,638,508.49
  5. Step 5: Solve for x
    x = 4,572,638,508.49/77,020.86
  6. Step 6: Final answer
    x = 59,368.83

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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.