Home / 56,688.30-85,032.45-19,258.20

Finding the Fourth Proportional to 56,688.30, 85,032.45 and 19,258.20

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Solution

The fourth proportional to 56,688.30, 85,032.45 and 19,258.20 is: 28,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,688.30 : 85,032.45 = 19,258.20 : x
  2. Step 2: Convert to fraction form
    56,688.30/85,032.45 = 19,258.20/x
  3. Step 3: Cross multiply
    56,688.30x = 85,032.45 × 19,258.20
  4. Step 4: Simplify right side
    56,688.30x = 1,637,571,928.59
  5. Step 5: Solve for x
    x = 1,637,571,928.59/56,688.30
  6. Step 6: Final answer
    x = 28,887.30

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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.