Home / 56,688.80-85,033.20-19,258.70

Finding the Fourth Proportional to 56,688.80, 85,033.20 and 19,258.70

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Solution

The fourth proportional to 56,688.80, 85,033.20 and 19,258.70 is: 28,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,688.80 : 85,033.20 = 19,258.70 : x
  2. Step 2: Convert to fraction form
    56,688.80/85,033.20 = 19,258.70/x
  3. Step 3: Cross multiply
    56,688.80x = 85,033.20 × 19,258.70
  4. Step 4: Simplify right side
    56,688.80x = 1,637,628,888.84
  5. Step 5: Solve for x
    x = 1,637,628,888.84/56,688.80
  6. Step 6: Final answer
    x = 28,888.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.