Home / 77,018.01-106,285.65-45,187.44

Finding the Fourth Proportional to 77,018.01, 106,285.65 and 45,187.44

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Solution

The fourth proportional to 77,018.01, 106,285.65 and 45,187.44 is: 62,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,018.01 : 106,285.65 = 45,187.44 : x
  2. Step 2: Convert to fraction form
    77,018.01/106,285.65 = 45,187.44/x
  3. Step 3: Cross multiply
    77,018.01x = 106,285.65 × 45,187.44
  4. Step 4: Simplify right side
    77,018.01x = 4,802,776,432.24
  5. Step 5: Solve for x
    x = 4,802,776,432.24/77,018.01
  6. Step 6: Final answer
    x = 62,359.13

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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.