Home / 105,459.48-145,531.38-62,439.51

Finding the Fourth Proportional to 105,459.48, 145,531.38 and 62,439.51

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Solution

The fourth proportional to 105,459.48, 145,531.38 and 62,439.51 is: 86,164.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,459.48 : 145,531.38 = 62,439.51 : x
  2. Step 2: Convert to fraction form
    105,459.48/145,531.38 = 62,439.51/x
  3. Step 3: Cross multiply
    105,459.48x = 145,531.38 × 62,439.51
  4. Step 4: Simplify right side
    105,459.48x = 9,086,908,056.82
  5. Step 5: Solve for x
    x = 9,086,908,056.82/105,459.48
  6. Step 6: Final answer
    x = 86,164.92

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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.