Home / 78,430.02-117,644.73-22,270.13

Finding the Fourth Proportional to 78,430.02, 117,644.73 and 22,270.13

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Solution

The fourth proportional to 78,430.02, 117,644.73 and 22,270.13 is: 33,405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,430.02 : 117,644.73 = 22,270.13 : x
  2. Step 2: Convert to fraction form
    78,430.02/117,644.73 = 22,270.13/x
  3. Step 3: Cross multiply
    78,430.02x = 117,644.73 × 22,270.13
  4. Step 4: Simplify right side
    78,430.02x = 2,619,963,430.91
  5. Step 5: Solve for x
    x = 2,619,963,430.91/78,430.02
  6. Step 6: Final answer
    x = 33,405.11

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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.