Home / 78,461.02-108,273.93-42,650.11

Finding the Fourth Proportional to 78,461.02, 108,273.93 and 42,650.11

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Solution

The fourth proportional to 78,461.02, 108,273.93 and 42,650.11 is: 58,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,461.02 : 108,273.93 = 42,650.11 : x
  2. Step 2: Convert to fraction form
    78,461.02/108,273.93 = 42,650.11/x
  3. Step 3: Cross multiply
    78,461.02x = 108,273.93 × 42,650.11
  4. Step 4: Simplify right side
    78,461.02x = 4,617,895,024.63
  5. Step 5: Solve for x
    x = 4,617,895,024.63/78,461.02
  6. Step 6: Final answer
    x = 58,855.91

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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.