Home / 66,419.47-91,607.02-42,548.37

Finding the Fourth Proportional to 66,419.47, 91,607.02 and 42,548.37

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Solution

The fourth proportional to 66,419.47, 91,607.02 and 42,548.37 is: 58,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,419.47 : 91,607.02 = 42,548.37 : x
  2. Step 2: Convert to fraction form
    66,419.47/91,607.02 = 42,548.37/x
  3. Step 3: Cross multiply
    66,419.47x = 91,607.02 × 42,548.37
  4. Step 4: Simplify right side
    66,419.47x = 3,897,729,381.56
  5. Step 5: Solve for x
    x = 3,897,729,381.56/66,419.47
  6. Step 6: Final answer
    x = 58,683.54

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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.