Home / 76,925.30-105,999.45-56,750.30

Finding the Fourth Proportional to 76,925.30, 105,999.45 and 56,750.30

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Solution

The fourth proportional to 76,925.30, 105,999.45 and 56,750.30 is: 78,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,925.30 : 105,999.45 = 56,750.30 : x
  2. Step 2: Convert to fraction form
    76,925.30/105,999.45 = 56,750.30/x
  3. Step 3: Cross multiply
    76,925.30x = 105,999.45 × 56,750.30
  4. Step 4: Simplify right side
    76,925.30x = 6,015,500,587.34
  5. Step 5: Solve for x
    x = 6,015,500,587.34/76,925.30
  6. Step 6: Final answer
    x = 78,199.25

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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.