Home / 78,465.44-108,281.02-42,656.35

Finding the Fourth Proportional to 78,465.44, 108,281.02 and 42,656.35

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Solution

The fourth proportional to 78,465.44, 108,281.02 and 42,656.35 is: 58,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,465.44 : 108,281.02 = 42,656.35 : x
  2. Step 2: Convert to fraction form
    78,465.44/108,281.02 = 42,656.35/x
  3. Step 3: Cross multiply
    78,465.44x = 108,281.02 × 42,656.35
  4. Step 4: Simplify right side
    78,465.44x = 4,618,872,710.13
  5. Step 5: Solve for x
    x = 4,618,872,710.13/78,465.44
  6. Step 6: Final answer
    x = 58,865.06

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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.