Home / 61,931.03-85,478.45-40,712.27

Finding the Fourth Proportional to 61,931.03, 85,478.45 and 40,712.27

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Solution

The fourth proportional to 61,931.03, 85,478.45 and 40,712.27 is: 56,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931.03 : 85,478.45 = 40,712.27 : x
  2. Step 2: Convert to fraction form
    61,931.03/85,478.45 = 40,712.27/x
  3. Step 3: Cross multiply
    61,931.03x = 85,478.45 × 40,712.27
  4. Step 4: Simplify right side
    61,931.03x = 3,480,021,104.63
  5. Step 5: Solve for x
    x = 3,480,021,104.63/61,931.03
  6. Step 6: Final answer
    x = 56,191.89

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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.