Home / 74,809.45-112,117.23-30,384.60

Finding the Fourth Proportional to 74,809.45, 112,117.23 and 30,384.60

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Solution

The fourth proportional to 74,809.45, 112,117.23 and 30,384.60 is: 45,537.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.45 : 112,117.23 = 30,384.60 : x
  2. Step 2: Convert to fraction form
    74,809.45/112,117.23 = 30,384.60/x
  3. Step 3: Cross multiply
    74,809.45x = 112,117.23 × 30,384.60
  4. Step 4: Simplify right side
    74,809.45x = 3,406,637,186.66
  5. Step 5: Solve for x
    x = 3,406,637,186.66/74,809.45
  6. Step 6: Final answer
    x = 45,537.52

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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.