Home / 76,258.08-105,236.08-42,724.32

Finding the Fourth Proportional to 76,258.08, 105,236.08 and 42,724.32

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Solution

The fourth proportional to 76,258.08, 105,236.08 and 42,724.32 is: 58,959.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,258.08 : 105,236.08 = 42,724.32 : x
  2. Step 2: Convert to fraction form
    76,258.08/105,236.08 = 42,724.32/x
  3. Step 3: Cross multiply
    76,258.08x = 105,236.08 × 42,724.32
  4. Step 4: Simplify right side
    76,258.08x = 4,496,139,957.47
  5. Step 5: Solve for x
    x = 4,496,139,957.47/76,258.08
  6. Step 6: Final answer
    x = 58,959.52

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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.