Home / 98,783.51-136,321.40-53,461.53

Finding the Fourth Proportional to 98,783.51, 136,321.40 and 53,461.53

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Solution

The fourth proportional to 98,783.51, 136,321.40 and 53,461.53 is: 73,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,783.51 : 136,321.40 = 53,461.53 : x
  2. Step 2: Convert to fraction form
    98,783.51/136,321.40 = 53,461.53/x
  3. Step 3: Cross multiply
    98,783.51x = 136,321.40 × 53,461.53
  4. Step 4: Simplify right side
    98,783.51x = 7,287,950,615.74
  5. Step 5: Solve for x
    x = 7,287,950,615.74/98,783.51
  6. Step 6: Final answer
    x = 73,777.00

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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.