Home / 78,222.04-107,946.90-42,411.74

Finding the Fourth Proportional to 78,222.04, 107,946.90 and 42,411.74

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Solution

The fourth proportional to 78,222.04, 107,946.90 and 42,411.74 is: 58,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,222.04 : 107,946.90 = 42,411.74 : x
  2. Step 2: Convert to fraction form
    78,222.04/107,946.90 = 42,411.74/x
  3. Step 3: Cross multiply
    78,222.04x = 107,946.90 × 42,411.74
  4. Step 4: Simplify right side
    78,222.04x = 4,578,215,856.61
  5. Step 5: Solve for x
    x = 4,578,215,856.61/78,222.04
  6. Step 6: Final answer
    x = 58,528.46

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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.