Home / 77,332.47-106,713.75-45,495.21

Finding the Fourth Proportional to 77,332.47, 106,713.75 and 45,495.21

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Solution

The fourth proportional to 77,332.47, 106,713.75 and 45,495.21 is: 62,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,332.47 : 106,713.75 = 45,495.21 : x
  2. Step 2: Convert to fraction form
    77,332.47/106,713.75 = 45,495.21/x
  3. Step 3: Cross multiply
    77,332.47x = 106,713.75 × 45,495.21
  4. Step 4: Simplify right side
    77,332.47x = 4,854,964,466.14
  5. Step 5: Solve for x
    x = 4,854,964,466.14/77,332.47
  6. Step 6: Final answer
    x = 62,780.41

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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.