Home / 191,420.51-287,128.79-49,265.22

Finding the Fourth Proportional to 191,420.51, 287,128.79 and 49,265.22

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Solution

The fourth proportional to 191,420.51, 287,128.79 and 49,265.22 is: 73,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,420.51 : 287,128.79 = 49,265.22 : x
  2. Step 2: Convert to fraction form
    191,420.51/287,128.79 = 49,265.22/x
  3. Step 3: Cross multiply
    191,420.51x = 287,128.79 × 49,265.22
  4. Step 4: Simplify right side
    191,420.51x = 14,145,463,007.68
  5. Step 5: Solve for x
    x = 14,145,463,007.68/191,420.51
  6. Step 6: Final answer
    x = 73,897.32

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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.