Home / 90,497.81-124,898.40-59,479.26

Finding the Fourth Proportional to 90,497.81, 124,898.40 and 59,479.26

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Solution

The fourth proportional to 90,497.81, 124,898.40 and 59,479.26 is: 82,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.81 : 124,898.40 = 59,479.26 : x
  2. Step 2: Convert to fraction form
    90,497.81/124,898.40 = 59,479.26/x
  3. Step 3: Cross multiply
    90,497.81x = 124,898.40 × 59,479.26
  4. Step 4: Simplify right side
    90,497.81x = 7,428,864,407.18
  5. Step 5: Solve for x
    x = 7,428,864,407.18/90,497.81
  6. Step 6: Final answer
    x = 82,088.89

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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.