Home / 99,479.36-137,246.88-56,453.76

Finding the Fourth Proportional to 99,479.36, 137,246.88 and 56,453.76

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Solution

The fourth proportional to 99,479.36, 137,246.88 and 56,453.76 is: 77,886.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,479.36 : 137,246.88 = 56,453.76 : x
  2. Step 2: Convert to fraction form
    99,479.36/137,246.88 = 56,453.76/x
  3. Step 3: Cross multiply
    99,479.36x = 137,246.88 × 56,453.76
  4. Step 4: Simplify right side
    99,479.36x = 7,748,102,424.27
  5. Step 5: Solve for x
    x = 7,748,102,424.27/99,479.36
  6. Step 6: Final answer
    x = 77,886.53

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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.