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Finding the Fourth Proportional to 64,258.71, 88,666.47 and 40,368.47

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Solution

The fourth proportional to 64,258.71, 88,666.47 and 40,368.47 is: 55,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,258.71 : 88,666.47 = 40,368.47 : x
  2. Step 2: Convert to fraction form
    64,258.71/88,666.47 = 40,368.47/x
  3. Step 3: Cross multiply
    64,258.71x = 88,666.47 × 40,368.47
  4. Step 4: Simplify right side
    64,258.71x = 3,579,329,734.20
  5. Step 5: Solve for x
    x = 3,579,329,734.20/64,258.71
  6. Step 6: Final answer
    x = 55,701.86

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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.