Home / 66,459.25-91,661.92-42,588.14

Finding the Fourth Proportional to 66,459.25, 91,661.92 and 42,588.14

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Solution

The fourth proportional to 66,459.25, 91,661.92 and 42,588.14 is: 58,738.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,459.25 : 91,661.92 = 42,588.14 : x
  2. Step 2: Convert to fraction form
    66,459.25/91,661.92 = 42,588.14/x
  3. Step 3: Cross multiply
    66,459.25x = 91,661.92 × 42,588.14
  4. Step 4: Simplify right side
    66,459.25x = 3,903,710,681.63
  5. Step 5: Solve for x
    x = 3,903,710,681.63/66,459.25
  6. Step 6: Final answer
    x = 58,738.41

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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.