Home / 78,869.36-108,840.28-43,060.08

Finding the Fourth Proportional to 78,869.36, 108,840.28 and 43,060.08

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Solution

The fourth proportional to 78,869.36, 108,840.28 and 43,060.08 is: 59,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,869.36 : 108,840.28 = 43,060.08 : x
  2. Step 2: Convert to fraction form
    78,869.36/108,840.28 = 43,060.08/x
  3. Step 3: Cross multiply
    78,869.36x = 108,840.28 × 43,060.08
  4. Step 4: Simplify right side
    78,869.36x = 4,686,671,164.02
  5. Step 5: Solve for x
    x = 4,686,671,164.02/78,869.36
  6. Step 6: Final answer
    x = 59,423.22

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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.