Home / 76,572.16-105,667.68-43,040.32

Finding the Fourth Proportional to 76,572.16, 105,667.68 and 43,040.32

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Solution

The fourth proportional to 76,572.16, 105,667.68 and 43,040.32 is: 59,394.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,572.16 : 105,667.68 = 43,040.32 : x
  2. Step 2: Convert to fraction form
    76,572.16/105,667.68 = 43,040.32/x
  3. Step 3: Cross multiply
    76,572.16x = 105,667.68 × 43,040.32
  4. Step 4: Simplify right side
    76,572.16x = 4,547,970,760.86
  5. Step 5: Solve for x
    x = 4,547,970,760.86/76,572.16
  6. Step 6: Final answer
    x = 59,394.57

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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.