Home / 78,985.72-118,454.48-41,525.45

Finding the Fourth Proportional to 78,985.72, 118,454.48 and 41,525.45

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Solution

The fourth proportional to 78,985.72, 118,454.48 and 41,525.45 is: 62,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,985.72 : 118,454.48 = 41,525.45 : x
  2. Step 2: Convert to fraction form
    78,985.72/118,454.48 = 41,525.45/x
  3. Step 3: Cross multiply
    78,985.72x = 118,454.48 × 41,525.45
  4. Step 4: Simplify right side
    78,985.72x = 4,918,875,586.52
  5. Step 5: Solve for x
    x = 4,918,875,586.52/78,985.72
  6. Step 6: Final answer
    x = 62,275.50

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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.