Home / 42,689.34-64,054.08-26,890.74

Finding the Fourth Proportional to 42,689.34, 64,054.08 and 26,890.74

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Solution

The fourth proportional to 42,689.34, 64,054.08 and 26,890.74 is: 40,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,689.34 : 64,054.08 = 26,890.74 : x
  2. Step 2: Convert to fraction form
    42,689.34/64,054.08 = 26,890.74/x
  3. Step 3: Cross multiply
    42,689.34x = 64,054.08 × 26,890.74
  4. Step 4: Simplify right side
    42,689.34x = 1,722,461,611.22
  5. Step 5: Solve for x
    x = 1,722,461,611.22/42,689.34
  6. Step 6: Final answer
    x = 40,348.75

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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.