Home / 67,678.75-101,461.02-42,663.66

Finding the Fourth Proportional to 67,678.75, 101,461.02 and 42,663.66

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Solution

The fourth proportional to 67,678.75, 101,461.02 and 42,663.66 is: 63,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,678.75 : 101,461.02 = 42,663.66 : x
  2. Step 2: Convert to fraction form
    67,678.75/101,461.02 = 42,663.66/x
  3. Step 3: Cross multiply
    67,678.75x = 101,461.02 × 42,663.66
  4. Step 4: Simplify right side
    67,678.75x = 4,328,698,460.53
  5. Step 5: Solve for x
    x = 4,328,698,460.53/67,678.75
  6. Step 6: Final answer
    x = 63,959.49

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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.