Home / 78,192.02-107,916.52-49,514.30

Finding the Fourth Proportional to 78,192.02, 107,916.52 and 49,514.30

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Solution

The fourth proportional to 78,192.02, 107,916.52 and 49,514.30 is: 68,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,192.02 : 107,916.52 = 49,514.30 : x
  2. Step 2: Convert to fraction form
    78,192.02/107,916.52 = 49,514.30/x
  3. Step 3: Cross multiply
    78,192.02x = 107,916.52 × 49,514.30
  4. Step 4: Simplify right side
    78,192.02x = 5,343,411,277.92
  5. Step 5: Solve for x
    x = 5,343,411,277.92/78,192.02
  6. Step 6: Final answer
    x = 68,337.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.