Home / 70,421.59-97,184.16-38,590.21

Finding the Fourth Proportional to 70,421.59, 97,184.16 and 38,590.21

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Solution

The fourth proportional to 70,421.59, 97,184.16 and 38,590.21 is: 53,255.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,421.59 : 97,184.16 = 38,590.21 : x
  2. Step 2: Convert to fraction form
    70,421.59/97,184.16 = 38,590.21/x
  3. Step 3: Cross multiply
    70,421.59x = 97,184.16 × 38,590.21
  4. Step 4: Simplify right side
    70,421.59x = 3,750,357,143.07
  5. Step 5: Solve for x
    x = 3,750,357,143.07/70,421.59
  6. Step 6: Final answer
    x = 53,255.79

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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.