Home / 76,436.36-105,484.02-42,905.48

Finding the Fourth Proportional to 76,436.36, 105,484.02 and 42,905.48

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Solution

The fourth proportional to 76,436.36, 105,484.02 and 42,905.48 is: 59,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,436.36 : 105,484.02 = 42,905.48 : x
  2. Step 2: Convert to fraction form
    76,436.36/105,484.02 = 42,905.48/x
  3. Step 3: Cross multiply
    76,436.36x = 105,484.02 × 42,905.48
  4. Step 4: Simplify right side
    76,436.36x = 4,525,842,510.43
  5. Step 5: Solve for x
    x = 4,525,842,510.43/76,436.36
  6. Step 6: Final answer
    x = 59,210.60

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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.