Home / 52,390.26-78,585.45-12,946.77

Finding the Fourth Proportional to 52,390.26, 78,585.45 and 12,946.77

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Solution

The fourth proportional to 52,390.26, 78,585.45 and 12,946.77 is: 19,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,390.26 : 78,585.45 = 12,946.77 : x
  2. Step 2: Convert to fraction form
    52,390.26/78,585.45 = 12,946.77/x
  3. Step 3: Cross multiply
    52,390.26x = 78,585.45 × 12,946.77
  4. Step 4: Simplify right side
    52,390.26x = 1,017,427,746.50
  5. Step 5: Solve for x
    x = 1,017,427,746.50/52,390.26
  6. Step 6: Final answer
    x = 19,420.17

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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.