Home / 77,100.13-106,402.25-46,880.45

Finding the Fourth Proportional to 77,100.13, 106,402.25 and 46,880.45

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Solution

The fourth proportional to 77,100.13, 106,402.25 and 46,880.45 is: 64,697.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,100.13 : 106,402.25 = 46,880.45 : x
  2. Step 2: Convert to fraction form
    77,100.13/106,402.25 = 46,880.45/x
  3. Step 3: Cross multiply
    77,100.13x = 106,402.25 × 46,880.45
  4. Step 4: Simplify right side
    77,100.13x = 4,988,185,361.01
  5. Step 5: Solve for x
    x = 4,988,185,361.01/77,100.13
  6. Step 6: Final answer
    x = 64,697.50

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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.