Home / 78,693.40-108,598.08-42,883.30

Finding the Fourth Proportional to 78,693.40, 108,598.08 and 42,883.30

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Solution

The fourth proportional to 78,693.40, 108,598.08 and 42,883.30 is: 59,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,693.40 : 108,598.08 = 42,883.30 : x
  2. Step 2: Convert to fraction form
    78,693.40/108,598.08 = 42,883.30/x
  3. Step 3: Cross multiply
    78,693.40x = 108,598.08 × 42,883.30
  4. Step 4: Simplify right side
    78,693.40x = 4,657,044,044.06
  5. Step 5: Solve for x
    x = 4,657,044,044.06/78,693.40
  6. Step 6: Final answer
    x = 59,179.60

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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.