Home / 91,011.47-136,350.59-65,989.35

Finding the Fourth Proportional to 91,011.47, 136,350.59 and 65,989.35

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Solution

The fourth proportional to 91,011.47, 136,350.59 and 65,989.35 is: 98,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,011.47 : 136,350.59 = 65,989.35 : x
  2. Step 2: Convert to fraction form
    91,011.47/136,350.59 = 65,989.35/x
  3. Step 3: Cross multiply
    91,011.47x = 136,350.59 × 65,989.35
  4. Step 4: Simplify right side
    91,011.47x = 8,997,686,476.27
  5. Step 5: Solve for x
    x = 8,997,686,476.27/91,011.47
  6. Step 6: Final answer
    x = 98,863.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.