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Finding the Fourth Proportional to 70,690.07, 97,575 and 45,264.89

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Solution

The fourth proportional to 70,690.07, 97,575 and 45,264.89 is: 62,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,690.07 : 97,575 = 45,264.89 : x
  2. Step 2: Convert to fraction form
    70,690.07/97,575 = 45,264.89/x
  3. Step 3: Cross multiply
    70,690.07x = 97,575 × 45,264.89
  4. Step 4: Simplify right side
    70,690.07x = 4,416,721,641.75
  5. Step 5: Solve for x
    x = 4,416,721,641.75/70,690.07
  6. Step 6: Final answer
    x = 62,480.09

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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.