Home / 85,276.32-117,713.76-64,117.08

Finding the Fourth Proportional to 85,276.32, 117,713.76 and 64,117.08

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Solution

The fourth proportional to 85,276.32, 117,713.76 and 64,117.08 is: 88,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,276.32 : 117,713.76 = 64,117.08 : x
  2. Step 2: Convert to fraction form
    85,276.32/117,713.76 = 64,117.08/x
  3. Step 3: Cross multiply
    85,276.32x = 117,713.76 × 64,117.08
  4. Step 4: Simplify right side
    85,276.32x = 7,547,462,567.02
  5. Step 5: Solve for x
    x = 7,547,462,567.02/85,276.32
  6. Step 6: Final answer
    x = 88,505.96

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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.