Home / 75,828.25-112,964.00-72,416.53

Finding the Fourth Proportional to 75,828.25, 112,964.00 and 72,416.53

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Solution

The fourth proportional to 75,828.25, 112,964.00 and 72,416.53 is: 107,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,828.25 : 112,964.00 = 72,416.53 : x
  2. Step 2: Convert to fraction form
    75,828.25/112,964.00 = 72,416.53/x
  3. Step 3: Cross multiply
    75,828.25x = 112,964.00 × 72,416.53
  4. Step 4: Simplify right side
    75,828.25x = 8,180,460,929.33
  5. Step 5: Solve for x
    x = 8,180,460,929.33/75,828.25
  6. Step 6: Final answer
    x = 107,881.45

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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.