Home / 70,713.24-97,486.65-56,421.60

Finding the Fourth Proportional to 70,713.24, 97,486.65 and 56,421.60

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Solution

The fourth proportional to 70,713.24, 97,486.65 and 56,421.60 is: 77,783.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,713.24 : 97,486.65 = 56,421.60 : x
  2. Step 2: Convert to fraction form
    70,713.24/97,486.65 = 56,421.60/x
  3. Step 3: Cross multiply
    70,713.24x = 97,486.65 × 56,421.60
  4. Step 4: Simplify right side
    70,713.24x = 5,500,352,771.64
  5. Step 5: Solve for x
    x = 5,500,352,771.64/70,713.24
  6. Step 6: Final answer
    x = 77,783.92

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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.