Home / 74,683.13-103,061.91-42,857.03

Finding the Fourth Proportional to 74,683.13, 103,061.91 and 42,857.03

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Solution

The fourth proportional to 74,683.13, 103,061.91 and 42,857.03 is: 59,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,683.13 : 103,061.91 = 42,857.03 : x
  2. Step 2: Convert to fraction form
    74,683.13/103,061.91 = 42,857.03/x
  3. Step 3: Cross multiply
    74,683.13x = 103,061.91 × 42,857.03
  4. Step 4: Simplify right side
    74,683.13x = 4,416,927,368.73
  5. Step 5: Solve for x
    x = 4,416,927,368.73/74,683.13
  6. Step 6: Final answer
    x = 59,142.24

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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.