Home / 72,068.53-99,459.48-40,236.76

Finding the Fourth Proportional to 72,068.53, 99,459.48 and 40,236.76

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Solution

The fourth proportional to 72,068.53, 99,459.48 and 40,236.76 is: 55,529.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,068.53 : 99,459.48 = 40,236.76 : x
  2. Step 2: Convert to fraction form
    72,068.53/99,459.48 = 40,236.76/x
  3. Step 3: Cross multiply
    72,068.53x = 99,459.48 × 40,236.76
  4. Step 4: Simplify right side
    72,068.53x = 4,001,927,226.48
  5. Step 5: Solve for x
    x = 4,001,927,226.48/72,068.53
  6. Step 6: Final answer
    x = 55,529.47

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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.