Home / 78,869.02-118,285.70-22,709.02

Finding the Fourth Proportional to 78,869.02, 118,285.70 and 22,709.02

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Solution

The fourth proportional to 78,869.02, 118,285.70 and 22,709.02 is: 34,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,869.02 : 118,285.70 = 22,709.02 : x
  2. Step 2: Convert to fraction form
    78,869.02/118,285.70 = 22,709.02/x
  3. Step 3: Cross multiply
    78,869.02x = 118,285.70 × 22,709.02
  4. Step 4: Simplify right side
    78,869.02x = 2,686,152,327.01
  5. Step 5: Solve for x
    x = 2,686,152,327.01/78,869.02
  6. Step 6: Final answer
    x = 34,058.40

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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.