Home / 42,967.11-64,186.53-31,018.80

Finding the Fourth Proportional to 42,967.11, 64,186.53 and 31,018.80

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Solution

The fourth proportional to 42,967.11, 64,186.53 and 31,018.80 is: 46,337.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,967.11 : 64,186.53 = 31,018.80 : x
  2. Step 2: Convert to fraction form
    42,967.11/64,186.53 = 31,018.80/x
  3. Step 3: Cross multiply
    42,967.11x = 64,186.53 × 31,018.80
  4. Step 4: Simplify right side
    42,967.11x = 1,990,989,136.76
  5. Step 5: Solve for x
    x = 1,990,989,136.76/42,967.11
  6. Step 6: Final answer
    x = 46,337.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.