Home / 66,459.02-91,712.79-38,164.91

Finding the Fourth Proportional to 66,459.02, 91,712.79 and 38,164.91

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Solution

The fourth proportional to 66,459.02, 91,712.79 and 38,164.91 is: 52,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,459.02 : 91,712.79 = 38,164.91 : x
  2. Step 2: Convert to fraction form
    66,459.02/91,712.79 = 38,164.91/x
  3. Step 3: Cross multiply
    66,459.02x = 91,712.79 × 38,164.91
  4. Step 4: Simplify right side
    66,459.02x = 3,500,209,917.63
  5. Step 5: Solve for x
    x = 3,500,209,917.63/66,459.02
  6. Step 6: Final answer
    x = 52,667.20

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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.