Home / 105,476.75-145,557.92-57,730.10

Finding the Fourth Proportional to 105,476.75, 145,557.92 and 57,730.10

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Solution

The fourth proportional to 105,476.75, 145,557.92 and 57,730.10 is: 79,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,476.75 : 145,557.92 = 57,730.10 : x
  2. Step 2: Convert to fraction form
    105,476.75/145,557.92 = 57,730.10/x
  3. Step 3: Cross multiply
    105,476.75x = 145,557.92 × 57,730.10
  4. Step 4: Simplify right side
    105,476.75x = 8,403,072,806.79
  5. Step 5: Solve for x
    x = 8,403,072,806.79/105,476.75
  6. Step 6: Final answer
    x = 79,667.53

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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.