Home / 98,539.48-135,985.38-56,100.76

Finding the Fourth Proportional to 98,539.48, 135,985.38 and 56,100.76

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Solution

The fourth proportional to 98,539.48, 135,985.38 and 56,100.76 is: 77,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,539.48 : 135,985.38 = 56,100.76 : x
  2. Step 2: Convert to fraction form
    98,539.48/135,985.38 = 56,100.76/x
  3. Step 3: Cross multiply
    98,539.48x = 135,985.38 × 56,100.76
  4. Step 4: Simplify right side
    98,539.48x = 7,628,883,166.89
  5. Step 5: Solve for x
    x = 7,628,883,166.89/98,539.48
  6. Step 6: Final answer
    x = 77,419.56

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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.