Home / 72,888.10-109,347.50-41,313.30

Finding the Fourth Proportional to 72,888.10, 109,347.50 and 41,313.30

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Solution

The fourth proportional to 72,888.10, 109,347.50 and 41,313.30 is: 61,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,888.10 : 109,347.50 = 41,313.30 : x
  2. Step 2: Convert to fraction form
    72,888.10/109,347.50 = 41,313.30/x
  3. Step 3: Cross multiply
    72,888.10x = 109,347.50 × 41,313.30
  4. Step 4: Simplify right side
    72,888.10x = 4,517,506,071.75
  5. Step 5: Solve for x
    x = 4,517,506,071.75/72,888.10
  6. Step 6: Final answer
    x = 61,978.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.