Home / 70,430.98-97,187.43-40,213.12

Finding the Fourth Proportional to 70,430.98, 97,187.43 and 40,213.12

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Solution

The fourth proportional to 70,430.98, 97,187.43 and 40,213.12 is: 55,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,430.98 : 97,187.43 = 40,213.12 : x
  2. Step 2: Convert to fraction form
    70,430.98/97,187.43 = 40,213.12/x
  3. Step 3: Cross multiply
    70,430.98x = 97,187.43 × 40,213.12
  4. Step 4: Simplify right side
    70,430.98x = 3,908,209,785.08
  5. Step 5: Solve for x
    x = 3,908,209,785.08/70,430.98
  6. Step 6: Final answer
    x = 55,489.92

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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.