Home / 71,897.96-99,219.28-40,066.16

Finding the Fourth Proportional to 71,897.96, 99,219.28 and 40,066.16

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Solution

The fourth proportional to 71,897.96, 99,219.28 and 40,066.16 is: 55,291.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,897.96 : 99,219.28 = 40,066.16 : x
  2. Step 2: Convert to fraction form
    71,897.96/99,219.28 = 40,066.16/x
  3. Step 3: Cross multiply
    71,897.96x = 99,219.28 × 40,066.16
  4. Step 4: Simplify right side
    71,897.96x = 3,975,335,547.56
  5. Step 5: Solve for x
    x = 3,975,335,547.56/71,897.96
  6. Step 6: Final answer
    x = 55,291.35

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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.