Home / 66,988.98-92,444.85-40,147.08

Finding the Fourth Proportional to 66,988.98, 92,444.85 and 40,147.08

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Solution

The fourth proportional to 66,988.98, 92,444.85 and 40,147.08 is: 55,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988.98 : 92,444.85 = 40,147.08 : x
  2. Step 2: Convert to fraction form
    66,988.98/92,444.85 = 40,147.08/x
  3. Step 3: Cross multiply
    66,988.98x = 92,444.85 × 40,147.08
  4. Step 4: Simplify right side
    66,988.98x = 3,711,390,788.54
  5. Step 5: Solve for x
    x = 3,711,390,788.54/66,988.98
  6. Step 6: Final answer
    x = 55,403.00

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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.