Home / 105,571.32-145,688.45-57,825.46

Finding the Fourth Proportional to 105,571.32, 145,688.45 and 57,825.46

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Solution

The fourth proportional to 105,571.32, 145,688.45 and 57,825.46 is: 79,799.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,571.32 : 145,688.45 = 57,825.46 : x
  2. Step 2: Convert to fraction form
    105,571.32/145,688.45 = 57,825.46/x
  3. Step 3: Cross multiply
    105,571.32x = 145,688.45 × 57,825.46
  4. Step 4: Simplify right side
    105,571.32x = 8,424,501,637.94
  5. Step 5: Solve for x
    x = 8,424,501,637.94/105,571.32
  6. Step 6: Final answer
    x = 79,799.15

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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.