Home / 85,496.40-128,258.64-26,332.08

Finding the Fourth Proportional to 85,496.40, 128,258.64 and 26,332.08

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Solution

The fourth proportional to 85,496.40, 128,258.64 and 26,332.08 is: 39,502.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,496.40 : 128,258.64 = 26,332.08 : x
  2. Step 2: Convert to fraction form
    85,496.40/128,258.64 = 26,332.08/x
  3. Step 3: Cross multiply
    85,496.40x = 128,258.64 × 26,332.08
  4. Step 4: Simplify right side
    85,496.40x = 3,377,316,769.17
  5. Step 5: Solve for x
    x = 3,377,316,769.17/85,496.40
  6. Step 6: Final answer
    x = 39,502.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.