Home / 78,384.02-117,616.23-38,402.24

Finding the Fourth Proportional to 78,384.02, 117,616.23 and 38,402.24

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Solution

The fourth proportional to 78,384.02, 117,616.23 and 38,402.24 is: 57,623.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384.02 : 117,616.23 = 38,402.24 : x
  2. Step 2: Convert to fraction form
    78,384.02/117,616.23 = 38,402.24/x
  3. Step 3: Cross multiply
    78,384.02x = 117,616.23 × 38,402.24
  4. Step 4: Simplify right side
    78,384.02x = 4,516,726,986.40
  5. Step 5: Solve for x
    x = 4,516,726,986.40/78,384.02
  6. Step 6: Final answer
    x = 57,623.06

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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.