Home / 78,813.10-118,219.65-49,264.30

Finding the Fourth Proportional to 78,813.10, 118,219.65 and 49,264.30

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Solution

The fourth proportional to 78,813.10, 118,219.65 and 49,264.30 is: 73,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,813.10 : 118,219.65 = 49,264.30 : x
  2. Step 2: Convert to fraction form
    78,813.10/118,219.65 = 49,264.30/x
  3. Step 3: Cross multiply
    78,813.10x = 118,219.65 × 49,264.30
  4. Step 4: Simplify right side
    78,813.10x = 5,824,008,303.50
  5. Step 5: Solve for x
    x = 5,824,008,303.50/78,813.10
  6. Step 6: Final answer
    x = 73,896.45

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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.