Home / 65,077.02-97,616.34-20,703.60

Finding the Fourth Proportional to 65,077.02, 97,616.34 and 20,703.60

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Solution

The fourth proportional to 65,077.02, 97,616.34 and 20,703.60 is: 31,055.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,077.02 : 97,616.34 = 20,703.60 : x
  2. Step 2: Convert to fraction form
    65,077.02/97,616.34 = 20,703.60/x
  3. Step 3: Cross multiply
    65,077.02x = 97,616.34 × 20,703.60
  4. Step 4: Simplify right side
    65,077.02x = 2,021,009,656.82
  5. Step 5: Solve for x
    x = 2,021,009,656.82/65,077.02
  6. Step 6: Final answer
    x = 31,055.66

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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.