Home / 77,312.07-106,688.86-45,483.02

Finding the Fourth Proportional to 77,312.07, 106,688.86 and 45,483.02

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Solution

The fourth proportional to 77,312.07, 106,688.86 and 45,483.02 is: 62,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312.07 : 106,688.86 = 45,483.02 : x
  2. Step 2: Convert to fraction form
    77,312.07/106,688.86 = 45,483.02/x
  3. Step 3: Cross multiply
    77,312.07x = 106,688.86 × 45,483.02
  4. Step 4: Simplify right side
    77,312.07x = 4,852,531,706.17
  5. Step 5: Solve for x
    x = 4,852,531,706.17/77,312.07
  6. Step 6: Final answer
    x = 62,765.51

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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.