Home / 97,495.12-134,544.15-57,209.55

Finding the Fourth Proportional to 97,495.12, 134,544.15 and 57,209.55

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Solution

The fourth proportional to 97,495.12, 134,544.15 and 57,209.55 is: 78,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,495.12 : 134,544.15 = 57,209.55 : x
  2. Step 2: Convert to fraction form
    97,495.12/134,544.15 = 57,209.55/x
  3. Step 3: Cross multiply
    97,495.12x = 134,544.15 × 57,209.55
  4. Step 4: Simplify right side
    97,495.12x = 7,697,210,276.63
  5. Step 5: Solve for x
    x = 7,697,210,276.63/97,495.12
  6. Step 6: Final answer
    x = 78,949.70

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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.