Home / 86,434.95-129,666.27-36,515.51

Finding the Fourth Proportional to 86,434.95, 129,666.27 and 36,515.51

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Solution

The fourth proportional to 86,434.95, 129,666.27 and 36,515.51 is: 54,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,434.95 : 129,666.27 = 36,515.51 : x
  2. Step 2: Convert to fraction form
    86,434.95/129,666.27 = 36,515.51/x
  3. Step 3: Cross multiply
    86,434.95x = 129,666.27 × 36,515.51
  4. Step 4: Simplify right side
    86,434.95x = 4,734,829,748.30
  5. Step 5: Solve for x
    x = 4,734,829,748.30/86,434.95
  6. Step 6: Final answer
    x = 54,779.11

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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.