Home / 105,534.24-145,637.52-57,787.92

Finding the Fourth Proportional to 105,534.24, 145,637.52 and 57,787.92

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Solution

The fourth proportional to 105,534.24, 145,637.52 and 57,787.92 is: 79,747.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,534.24 : 145,637.52 = 57,787.92 : x
  2. Step 2: Convert to fraction form
    105,534.24/145,637.52 = 57,787.92/x
  3. Step 3: Cross multiply
    105,534.24x = 145,637.52 × 57,787.92
  4. Step 4: Simplify right side
    105,534.24x = 8,416,089,354.76
  5. Step 5: Solve for x
    x = 8,416,089,354.76/105,534.24
  6. Step 6: Final answer
    x = 79,747.48

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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.