Home / 90,065.34-124,307.31-59,384.46

Finding the Fourth Proportional to 90,065.34, 124,307.31 and 59,384.46

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Solution

The fourth proportional to 90,065.34, 124,307.31 and 59,384.46 is: 81,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,065.34 : 124,307.31 = 59,384.46 : x
  2. Step 2: Convert to fraction form
    90,065.34/124,307.31 = 59,384.46/x
  3. Step 3: Cross multiply
    90,065.34x = 124,307.31 × 59,384.46
  4. Step 4: Simplify right side
    90,065.34x = 7,381,922,478.40
  5. Step 5: Solve for x
    x = 7,381,922,478.40/90,065.34
  6. Step 6: Final answer
    x = 81,961.86

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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.