Home / 66,623.63-91,931.76-42,782.63

Finding the Fourth Proportional to 66,623.63, 91,931.76 and 42,782.63

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Solution

The fourth proportional to 66,623.63, 91,931.76 and 42,782.63 is: 59,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,623.63 : 91,931.76 = 42,782.63 : x
  2. Step 2: Convert to fraction form
    66,623.63/91,931.76 = 42,782.63/x
  3. Step 3: Cross multiply
    66,623.63x = 91,931.76 × 42,782.63
  4. Step 4: Simplify right side
    66,623.63x = 3,933,082,013.67
  5. Step 5: Solve for x
    x = 3,933,082,013.67/66,623.63
  6. Step 6: Final answer
    x = 59,034.34

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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.