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Finding the Fourth Proportional to 75,737.84, 112,868.48 and 73,457.60

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Solution

The fourth proportional to 75,737.84, 112,868.48 and 73,457.60 is: 109,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,737.84 : 112,868.48 = 73,457.60 : x
  2. Step 2: Convert to fraction form
    75,737.84/112,868.48 = 73,457.60/x
  3. Step 3: Cross multiply
    75,737.84x = 112,868.48 × 73,457.60
  4. Step 4: Simplify right side
    75,737.84x = 8,291,047,656.45
  5. Step 5: Solve for x
    x = 8,291,047,656.45/75,737.84
  6. Step 6: Final answer
    x = 109,470.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.