Home / 91,712.96-126,510.13-57,667.49

Finding the Fourth Proportional to 91,712.96, 126,510.13 and 57,667.49

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Solution

The fourth proportional to 91,712.96, 126,510.13 and 57,667.49 is: 79,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,712.96 : 126,510.13 = 57,667.49 : x
  2. Step 2: Convert to fraction form
    91,712.96/126,510.13 = 57,667.49/x
  3. Step 3: Cross multiply
    91,712.96x = 126,510.13 × 57,667.49
  4. Step 4: Simplify right side
    91,712.96x = 7,295,521,656.67
  5. Step 5: Solve for x
    x = 7,295,521,656.67/91,712.96
  6. Step 6: Final answer
    x = 79,547.34

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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.