Home / 70,985.16-97,971.12-42,306.30

Finding the Fourth Proportional to 70,985.16, 97,971.12 and 42,306.30

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Solution

The fourth proportional to 70,985.16, 97,971.12 and 42,306.30 is: 58,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,985.16 : 97,971.12 = 42,306.30 : x
  2. Step 2: Convert to fraction form
    70,985.16/97,971.12 = 42,306.30/x
  3. Step 3: Cross multiply
    70,985.16x = 97,971.12 × 42,306.30
  4. Step 4: Simplify right side
    70,985.16x = 4,144,795,594.06
  5. Step 5: Solve for x
    x = 4,144,795,594.06/70,985.16
  6. Step 6: Final answer
    x = 58,389.61

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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.