Home / 77,403.02-106,817.37-43,419.05

Finding the Fourth Proportional to 77,403.02, 106,817.37 and 43,419.05

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Solution

The fourth proportional to 77,403.02, 106,817.37 and 43,419.05 is: 59,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,403.02 : 106,817.37 = 43,419.05 : x
  2. Step 2: Convert to fraction form
    77,403.02/106,817.37 = 43,419.05/x
  3. Step 3: Cross multiply
    77,403.02x = 106,817.37 × 43,419.05
  4. Step 4: Simplify right side
    77,403.02x = 4,637,908,728.90
  5. Step 5: Solve for x
    x = 4,637,908,728.90/77,403.02
  6. Step 6: Final answer
    x = 59,918.96

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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.