Home / 72,750.02-100,395.05-40,918.94

Finding the Fourth Proportional to 72,750.02, 100,395.05 and 40,918.94

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Solution

The fourth proportional to 72,750.02, 100,395.05 and 40,918.94 is: 56,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,750.02 : 100,395.05 = 40,918.94 : x
  2. Step 2: Convert to fraction form
    72,750.02/100,395.05 = 40,918.94/x
  3. Step 3: Cross multiply
    72,750.02x = 100,395.05 × 40,918.94
  4. Step 4: Simplify right side
    72,750.02x = 4,108,058,697.16
  5. Step 5: Solve for x
    x = 4,108,058,697.16/72,750.02
  6. Step 6: Final answer
    x = 56,468.15

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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.