Home / 66,426.63-91,616.91-42,555.53

Finding the Fourth Proportional to 66,426.63, 91,616.91 and 42,555.53

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Solution

The fourth proportional to 66,426.63, 91,616.91 and 42,555.53 is: 58,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,426.63 : 91,616.91 = 42,555.53 : x
  2. Step 2: Convert to fraction form
    66,426.63/91,616.91 = 42,555.53/x
  3. Step 3: Cross multiply
    66,426.63x = 91,616.91 × 42,555.53
  4. Step 4: Simplify right side
    66,426.63x = 3,898,805,703.93
  5. Step 5: Solve for x
    x = 3,898,805,703.93/66,426.63
  6. Step 6: Final answer
    x = 58,693.41

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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.