Home / 74,270.40-111,405.60-57,681.60

Finding the Fourth Proportional to 74,270.40, 111,405.60 and 57,681.60

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Solution

The fourth proportional to 74,270.40, 111,405.60 and 57,681.60 is: 86,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,270.40 : 111,405.60 = 57,681.60 : x
  2. Step 2: Convert to fraction form
    74,270.40/111,405.60 = 57,681.60/x
  3. Step 3: Cross multiply
    74,270.40x = 111,405.60 × 57,681.60
  4. Step 4: Simplify right side
    74,270.40x = 6,426,053,256.96
  5. Step 5: Solve for x
    x = 6,426,053,256.96/74,270.40
  6. Step 6: Final answer
    x = 86,522.40

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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.