Home / 74,984.13-103,478.08-40,992.76

Finding the Fourth Proportional to 74,984.13, 103,478.08 and 40,992.76

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Solution

The fourth proportional to 74,984.13, 103,478.08 and 40,992.76 is: 56,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,984.13 : 103,478.08 = 40,992.76 : x
  2. Step 2: Convert to fraction form
    74,984.13/103,478.08 = 40,992.76/x
  3. Step 3: Cross multiply
    74,984.13x = 103,478.08 × 40,992.76
  4. Step 4: Simplify right side
    74,984.13x = 4,241,852,026.69
  5. Step 5: Solve for x
    x = 4,241,852,026.69/74,984.13
  6. Step 6: Final answer
    x = 56,570.00

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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.