Home / 78,905.02-108,888.35-43,095.04

Finding the Fourth Proportional to 78,905.02, 108,888.35 and 43,095.04

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Solution

The fourth proportional to 78,905.02, 108,888.35 and 43,095.04 is: 59,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,905.02 : 108,888.35 = 43,095.04 : x
  2. Step 2: Convert to fraction form
    78,905.02/108,888.35 = 43,095.04/x
  3. Step 3: Cross multiply
    78,905.02x = 108,888.35 × 43,095.04
  4. Step 4: Simplify right side
    78,905.02x = 4,692,547,798.78
  5. Step 5: Solve for x
    x = 4,692,547,798.78/78,905.02
  6. Step 6: Final answer
    x = 59,470.84

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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.