Home / 70,607.12-97,437.96-38,778.08

Finding the Fourth Proportional to 70,607.12, 97,437.96 and 38,778.08

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Solution

The fourth proportional to 70,607.12, 97,437.96 and 38,778.08 is: 53,513.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,607.12 : 97,437.96 = 38,778.08 : x
  2. Step 2: Convert to fraction form
    70,607.12/97,437.96 = 38,778.08/x
  3. Step 3: Cross multiply
    70,607.12x = 97,437.96 × 38,778.08
  4. Step 4: Simplify right side
    70,607.12x = 3,778,457,007.92
  5. Step 5: Solve for x
    x = 3,778,457,007.92/70,607.12
  6. Step 6: Final answer
    x = 53,513.82

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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.