Home / 98,775.32-136,312.34-56,337.80

Finding the Fourth Proportional to 98,775.32, 136,312.34 and 56,337.80

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Solution

The fourth proportional to 98,775.32, 136,312.34 and 56,337.80 is: 77,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,775.32 : 136,312.34 = 56,337.80 : x
  2. Step 2: Convert to fraction form
    98,775.32/136,312.34 = 56,337.80/x
  3. Step 3: Cross multiply
    98,775.32x = 136,312.34 × 56,337.80
  4. Step 4: Simplify right side
    98,775.32x = 7,679,536,385.20
  5. Step 5: Solve for x
    x = 7,679,536,385.20/98,775.32
  6. Step 6: Final answer
    x = 77,747.53

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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.