Home / 52,281.64-78,422.73-12,838.77

Finding the Fourth Proportional to 52,281.64, 78,422.73 and 12,838.77

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Solution

The fourth proportional to 52,281.64, 78,422.73 and 12,838.77 is: 19,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,281.64 : 78,422.73 = 12,838.77 : x
  2. Step 2: Convert to fraction form
    52,281.64/78,422.73 = 12,838.77/x
  3. Step 3: Cross multiply
    52,281.64x = 78,422.73 × 12,838.77
  4. Step 4: Simplify right side
    52,281.64x = 1,006,851,345.10
  5. Step 5: Solve for x
    x = 1,006,851,345.10/52,281.64
  6. Step 6: Final answer
    x = 19,258.22

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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.